Tag: M.W=100-200

Computed Properties of C9H11Cu. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about An Expeditious Synthesis of Sialic Acid Derivatives by Copper(I)-Catalyzed Stereo-divergent Propargylation of Unprotected Aldoses. Author is Wei, Xiao-Feng; Shimizu, Yohei; Kanai, Motomu.

We developed a copper(I)-catalyzed stereo-divergent anomeric propargylation of unprotected aldoses as a facile synthetic pathway to a broad variety of sialic acid derivatives The soft allenyl-copper(I) species, catalytically generated from stable allenyl-boronic acid pinacolate, is unusually inert to protonolysis by the multiple hydroxy groups of the substrates and thereby functions as a carbon nucleophile. The key additive B(OMe)3 facilitated ring-opening of the non-electrophilic cyclic hemiacetal forms of aldoses to the reactive aldehyde forms. The chirality of the catalyst, and not the internal stereogenic centers of substrates, predominantly controlled the stereochem. of the propargylation step; i.e., the diastereoselectivity was switched simply by changing the catalyst chirality. This is the first non-enzyme catalyst-controlled stereo-divergent C-C bond elongation at the anomeric center of unprotected aldoses, which contain multiple protic functional groups and stereogenic centers. The propargylation products can be expeditiously transformed into naturally occurring and synthetic sialic acid derivatives in a simple three-step sequence. This synthetic method, which requires no protecting groups, can be performed on a gram-scale and thus offers general and practical access to various sialic acid derivatives from unprotected aldoses.

Here is a brief introduction to this compound(75732-01-3)Computed Properties of C9H11Cu, if you want to know about other compounds related to this compound(75732-01-3), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 60827-45-4, is researched, SMILESS is OC[C@H](O)CCl, Molecular C3H7ClO2Journal, Journal of Fermentation and Bioengineering called Isolation of a bacterium assimilating (R)-3-chloro-1,2-propanediol and production of (S)-3-chloro-1,2-propanediol using microbial resolution, Author is Suzuki, Toshio; Kasai, Naoya; Yamamoto, Ryoichi; Minamiura, Noshi, the main research direction is Alcaligenes chloropropanediol metabolism resolution.Recommanded Product: 60827-45-4.

A bacterium capable of assimilating 3-chloro-1,2-propanediol was isolated from soil by enrichment culture. The strain was identified as Alcaligenes sp. by taxonomic studies. The crude extracts of the cells had dehalogenating activities and converted various halohydrins to the corresponding epoxides. 3-Chloro-1,2-propanediol was degraded stereospecifically by the strain, liberating Cl-. The residual isomer was found by use of this strain in 38% yield, and (S)-glycidol (99.4% enantiomeric excess) was subsequently synthesized from the obtained (S)-3-chloro-1,2-propanediol by alk. treatment.

Here is a brief introduction to this compound(60827-45-4)Recommanded Product: 60827-45-4, if you want to know about other compounds related to this compound(60827-45-4), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: (2S)-(+)-3-Chloropropane-1,2-diol(SMILESS: OC[C@H](O)CCl,cas:60827-45-4) is researched.HPLC of Formula: 111-18-2. The article 《Study on acute toxicity of R,S and (R,S)-3-chloro-1,2-propanediol》 in relation to this compound, is published in Weisheng Yanjiu. Let’s take a look at the latest research on this compound (cas:60827-45-4).

The aim of the paper was to investigate the acute toxicity of R,S and (R,S)-3-chloro-1,2-propanediol (3-MCPD). Ten, seven and seven groups of sexually mature ICR mice were employed for testing the acute toxicity of R, S and (R,S)-3-MCPD, at the doses of 176.78 mg/kg, 198.43 mg/kg, 222.73 mg/kg, 250 mg/kg, 280.61 mg/kg, 314.98 mg/kg, 353.55 mg/kg, 396.84 mg/kg, 445.44 mg/kg, and 499.99 mg/kg for R-3-MCPD, 89.09 mg/kg, 100 mg/kg, 112.25 mg/kg, 125.99 mg/kg, 141.42 mg/kg, 158.74 mg/kg and 178.18 mg/kg for S-3-MCPD, and 130.25 mg/kg, 150 mg/kg, 172.75 mg/kg, 198.95 mg/kg, 229.13 mg/kg, 263.88 mg/kg and 303.91 mg/kg for (R,S)-3-MCPD, resp. The mice were given three forms of 3-MCPD once by gavage and observed for 14 days, the LD50 was calculated by the modified Karber’s method, and organ/body weight ratios were measured and morphol. changes of liver and kidney were examined Results showed that the LD50 (95% CI) of R, S and (R,S)-3-MCPD was 290.54 mg/kg (280.74-300.68), 117.57 mg/kg (113.82-121.45) and 190.73 mg/kg (177.76-204.59), resp. The kidney/weight ratios in R-3-MCPD treated groups were higher than controls at the doses of 250-353.55 mg/kg (P < 0.05), and the brain weight ratios also had an significant increase in the 353.55 mg/kg, 445.44 mg/kg and above doses (P < 0.05). However, no significant changes on organ/body weight ratio of any organs in S-3-MCPD treated groups were observed The kidney/body weight ratio in (R,S)-3-MCPD treated groups increased significantly at the doses of 198.95-303.91 mg/kg (P < 0.05), and the brain weight ratios also had a significant increase at the doses of 229.13-303.91 mg/kg. At the doses of 353.55-499.99mg/kg, R-3-MCPD caused obvious swell of liver cells and the swell and congestion of the liver sinus. At the dose 229.13 mg/kg and above, (R,S)-3-MCPD also induced the swell of liver cells and congestion of the liver sinus. No obvious morphol. change of kidney after administration of R, S and (R,S)-3-MCPD was observed In conclusion, the acute toxicity of S-3-MCPD might be much higher than those of (R,S)-3-MCPD and R-3-MCPD, and both R-3-MCPD and S-3-MCPD seemed to possess neurotoxicity. Here is a brief introduction to this compound(60827-45-4)HPLC of Formula: 60827-45-4, if you want to know about other compounds related to this compound(60827-45-4), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Quality Control of (2S)-(+)-3-Chloropropane-1,2-diol. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about Synthesis of polymeric salen complexes and application in the enantioselective hydrolytic kinetic resolution of epoxides as catalysts. Author is Kwon, Mi-Ae; Kim, Geon-Joong.

The polymeric (salen) Co(III) catalysts containing various counter anions have been synthesized, and the asym. catalytic activities of these newly synthesized polymer-type salen complexes were investigated in the HKR of terminal epoxides. The polymeric chiral salen Co(III) complexes catalyze the hydrolysis of epichlorohydrin, 1,2-epoxybutane, 1,2-epoxyhexane and epoxystyrene with very high enantioselectivities under mild conditions. The catalysts could be recovered and reused several times without further treatment after reaction, showing no loss of activity and enantioselectivity.

Here is a brief introduction to this compound(60827-45-4)Quality Control of (2S)-(+)-3-Chloropropane-1,2-diol, if you want to know about other compounds related to this compound(60827-45-4), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Reference of 2-Methylglutaronitrile. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about Inhalation toxicity of methylglutaronitrile in rats.

Methylglutaronitrile (MGN) is a high-boiling (263°) solvent/intermediate used in the fiber industry. Twenty male rats per group were exposed nose-only to condensation aerosol/vapor concentrations of approx. either 5, 25, or 200 mg/m3 MGN for 6 h/day, 5 days/wk over a 4-wk period. Ten rats/group were sacrificed 1 day after the final exposure and the remaining rats after a 4-wk recovery period. No effects were observed in clin. observations during the exposure period, but body-weight depression was observed in the 200-mg/m3 group. The 200-mg/m3 group showed minimal decreases in red blood cell count, Hb, and hematocrit values accompanied by increases in reticulocytes. There were no other effects observed in clin. or pathol. evaluations in the study. A neurobehavioral battery of tests (including grip strength, functional observational battery, and motor activity tests) given at the end of the exposure and recovery periods showed no MGN effects. During the 4-wk recovery, body weights in the 200-mg/m3 group returned to normal and the hematol. findings in all the groups were normal. Based on the above findings of body weight depression at 200 mg/m3, the no-observed-adverse-effect level (NOAEL) for this study was considered to be 25 mg/m3.

Here is a brief introduction to this compound(4553-62-2)Reference of 2-Methylglutaronitrile, if you want to know about other compounds related to this compound(4553-62-2), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Related Products of 60827-45-4. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about A new ligand class for the asymmetric dihydroxylation of olefins.

1,4-Bis(dihydroquinidinyl)- and 1,4-bis(dihydroquininyl)anthraquinone are new ligands which show superior enantioselectivity in the asym. dihydroxylation of almost all olefins having only aliphatic substituents.

Here is a brief introduction to this compound(60827-45-4)Related Products of 60827-45-4, if you want to know about other compounds related to this compound(60827-45-4), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Hakansson, M.; Lopes, C.; Jagner, S. published an article about the compound: Mesitylcopper(I)( cas:75732-01-3,SMILESS:[Cu]C1=C(C)C=C(C)C=C1C ).HPLC of Formula: 75732-01-3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:75732-01-3) through the article.

Two Cu(I) alkoxides, the novel compound triphenylmethoxocopper(I) and an octanuclear form of t-butoxocopper(I), were prepared from mesitylcopper(I) and the relevant alc. [Cu4(OCPh3)4]·2C6H5CH3 (1) and [Cu8(OtBu)8] (2) were characterized by crystal structure determination Compound 1 contains two crystallog. independent triphenylmethoxocopper(I) mols., each with a planar Cu4 core. The Cu4O4 unit is butterfly-shaped with the O ligands situated alternately ∼0.4 A above and below the plane through the Cu atoms, and the triphenylmethyl groups spread out over both sides of the Cu4O4 core. The Cu(I) centers are two-coordinated with distances of 1.83(1)-1.86(1) A and O-Cu-O angles of 169.4(5)°. [Cu8(OtBu)8] (2) can be described as being composed of two approx. planar Cu4O4 cores, each with the t-Bu groups bent away in the same direction from the Cu4O4 plane. These units are related to one another by a center of symmetry and with weak Cu-O interactions of 2.493(5) and 2.536(5) A, involving four of the eight coppers, thus yielding an octanuclear Cu8O8 core. These four Cu(I) centers thus attain T-shaped three-coordination by O, whereas the remaining four are approx. linearly coordinated. The short Cu-O bond lengths in 2 range from 1.844(5) to 1.888(5) A.

Here is a brief introduction to this compound(75732-01-3)HPLC of Formula: 75732-01-3, if you want to know about other compounds related to this compound(75732-01-3), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Reference of 2-Methylglutaronitrile. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about Deactivation during the hydrogenation of 2-methylglutaronitrile to β-picoline. Author is Lanini, S.; Prins, R..

A strong correlation between conversion and product selectivity was found for the production of β-picoline from 2-methylglutaronitrile in a single-stage process. The conversion had to be maintained at a very high level in order to keep the intermediates concentration low, thus preventing the formation of coke precursors by condensation reactions. The intermediates concentration on the metal surface was strongly influenced by the reaction temperature and the partial pressures. Above 598 K, the selectivity for condensation products decreased sharply, but also the overall conversion decreased. This neg. effect could be compensated by an increased hydrogen partial pressure.

Here is a brief introduction to this compound(4553-62-2)Reference of 2-Methylglutaronitrile, if you want to know about other compounds related to this compound(4553-62-2), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Direct Synthesis of N-Heterocyclic Carbene-Stabilized Copper Nanoparticles from an N-Heterocyclic Carbene-Borane, the main research direction is nitrogen heterocyclic carbene stabilized copper nanoparticle preparation; borane nitrogen heterocyclic carbene reaction copper complex; mesityl copper reaction didodecylimidazolium bromide borane adduct; carbene ligands; copper; nanoparticles; radical reactions; reaction mechanisms.SDS of cas: 75732-01-3.

N-Heterocyclic carbene (NHC)-stabilized copper nanoparticles (NPs) were synthesized from an NHC-borane adduct and mesitylcopper(I) under thermal conditions (refluxing toluene for 2.5 h). NPs with a size distribution of 11.6±1.8 nm were obtained. The interaction between Cu NPs and NHC ligands was probed by XPS, which showed covalent binding of the NHC to the surface of the NPs. Mechanistic studies suggested that NHC-borane plays two roles: contributing to the reduction of [CuMes]2 to release Cu0 species and providing NHC ligands to stabilize the copper NPs.

Here is a brief introduction to this compound(75732-01-3)SDS of cas: 75732-01-3, if you want to know about other compounds related to this compound(75732-01-3), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Hu, Ji; Malic, Nino; Scott, Janet L.; Strauss, Christopher R. published the article 《Potential impacts of deep-sea injection of CO2 on marine organic chemistry》. Keywords: deep sea injection carbon dioxide effect marine organic chem; carbon dioxide epoxide effect marine organic chem seawater injection.They researched the compound: (2S)-(+)-3-Chloropropane-1,2-diol( cas:60827-45-4 ).Quality Control of (2S)-(+)-3-Chloropropane-1,2-diol. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:60827-45-4) here.

The extent of reaction of epoxides in salt water changed markedly following introduction of gaseous or liquid CO2. Higher concentrations of β-chlorohydrins in carbonated salt water vs. concentrations in salt water alone were attributed to greater acidity of the aqueous phase. This suggested regimes for sequestering CO2 by deep sea injection should account for potential effects on marine organic chem. No evidence was obtained for enhanced nucleophilicity of Cl- through potential desolvation at the CO2-water interface.

Here is a brief introduction to this compound(60827-45-4)Quality Control of (2S)-(+)-3-Chloropropane-1,2-diol, if you want to know about other compounds related to this compound(60827-45-4), you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com