Tag: M.W=200-250

Mostad, Asbj published the artcilePyridine-iodomonochloride. Charge transfer complex studied by ESCA [electron spectroscopy for chemical analysis], COA of Formula: C5H5ClIN, the publication is Chemical Physics Letters (1973), 23(2), 157-9, database is CAplus.

The charge transfer complex pyridine-ICl and its dissociation components were studied at equilibrium in the gas phase by means of ESCA. At. core energy shifts in the complex relative to its components are: N 1s: +0.9 eV, I 3d: -0.8 eV, Cl 2p: <0.3 eV. If the potential model is used, these shifts suggest a transfer of 0.1 electrons from the N to the I atom in the complex.

Chemical Physics Letters published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5ClIN, COA of Formula: C5H5ClIN.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Bodroux, F. published the artcileTransformation of Esters of α-Bromaliphatic Acids into the Corresponding α-Iodine Derivatives, Safety of Ethyl 2-Iodopropionate, the publication is Compt. rend. (1907), 1216-17, database is CAplus.

Ethyl α-chloracetate reacts with magnesium iodide giving ethyl iodacetate (Ibid, 140, 1597). The authors find that the α-brom substituted esters react in a smooth manner with magnesium iodide in ether giving the iodine derivatives. Experimental: Ethyl iodacetate, ICH₂.CO₂C₂H₄. b₂₄ 85-86°; d₂₄ 1.762. Ethyl α-iodpropionate, CH₂.CHI.CO₂C₂H₄, b₂₄ 85°, d₁₇ 1.662. Ethyl α-iodbutyrate, C₂H₅CHI.CO₂C₂H₄, b₂₁ 100-101°; d₁₇ 1.570. The iodine-substituted esters are unstable and decompose under influence of light and heat with liberation of iodine. They volatilize at ordinary temperature

Compt. rend. published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, Safety of Ethyl 2-Iodopropionate.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Bodroux, F. published the artcileTransformation of Esters of Aliphatic α-Brom Acids into the Corresponding Iodo Compounds, Synthetic Route of 31253-08-4, the publication is Bulletin de la Societe Chimique de France (1908), 909-11, database is CAplus.

By means of magnesium iodide in ethereal solution, ethyl bromacetate is converted into ethyl iodoacetate, b₂₅ 85-6°, d₂₄=1.702. Ethyl a-iodopropionate, C₅H₉O₂I, liquid, slightly colored, irritating odor, b₃₈ 85°, b₇₆₅ 181-3° with partial decomposition, d₁₇=1.662. Ethyl a-iodobutyrate, C₆H₁₁O₂I, colorless liquid, odor like pippin apples, b. 195-8° with partial decomposition, d₁₇=1.570.

Bulletin de la Societe Chimique de France published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, Synthetic Route of 31253-08-4.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Mizota, Isao published the artcileTandem N,N-Dialkylation Reaction of N-Trimethylsilyl α-Iminoesters Utilizing an Umpolung Reaction and Characteristics of the Silyl Substituent: Synthesis of Pyrrolidine, Piperidine, and Iminodiacetate, Quality Control of 31253-08-4, the publication is Organic Letters (2019), 21(8), 2663-2667, database is CAplus and MEDLINE.

Umpolung reactions of N-trimethylsilyl α-iminoester with organometallics gave directly N-alkylaminoesters in high yields without the need for removing a protecting group at the nitrogen atom. Efficient syntheses of pyrrolidines, piperidines, and iminodiacetate derivatives were also developed via tandem N,N- or N,C-dialkylation reactions utilizing characteristics of the silyl substituent. Furthermore, under the influence of silica gel, the addition of an enolate to the imino nitrogen proceeded to give an iminodiacetate derivative

Organic Letters published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, Quality Control of 31253-08-4.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Hibe, Yuta published the artcileOn spin-lattice relaxation of nuclear quadrupole resonance in polycrystalline solids, SDS of cas: 6443-90-9, the publication is Chemical Physics Letters (2022), 139379, database is CAplus.

The anal. of spin-lattice relaxation in NQR (NQR) of spin-(5/2) reported by Okubo and Igarashi (Z. Naturforsch. A. 56 (2001) 777) is extended to take account of the distribution of the initial non-equilibrium populations created by a resonant radio-frequency pulse in powder. The proposed theory is applicable to axially sym. elec. field gradient tensor and is examined for spin-lattice relaxation of ¹²⁷I NQR in polycrystalline pyridine iodine monochloride measured at 469 MHz at 77 K.

Chemical Physics Letters published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5ClIN, SDS of cas: 6443-90-9.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Koike, Takeshi published the artcileTotal synthesis of racemic ligularone and isoligularone, Computed Properties of 31253-08-4, the publication is Chemical & Pharmaceutical Bulletin (1999), 47(6), 897-899, database is CAplus.

Racemic ligularone (I) and isoligularone (II) were synthesized from the cis-4aβ,5,6,7,8,8a-hexahydro-8β,8aβ-dimethylnaphthalene-1,3(2H,4H)-dione (III) by furannulation reaction with diethyl(prop-2-ynyl)sulfonium bromide, prepared from di-Et sulfide and propargyl bromide.

Chemical & Pharmaceutical Bulletin published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, Computed Properties of 31253-08-4.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Bowmaker, Graham A. published the artcileVibrational spectra of adducts of iodine monochloride with some pyridine bases, Safety of Pyridine Iodochloride complex, the publication is Australian Journal of Chemistry (1980), 33(8), 1743-51, database is CAplus.

A series of mol. adducts, L-ICl, where L = pyridine or a pyridine derivative, were prepared and the solid state spectra examined by Raman and far-IR spectroscopy. Assignments of the modes ν(I-Cl) 240-300 cm^-1 and ν(N-I) 90-180 cm^-1 and force constant calculations in a simple 3-center model yield information on structure and bonding related to the nature of the pyridine donor. Several ionic products containing the ICl₂^– ion were encountered.

Australian Journal of Chemistry published new progress about 6443-90-9. 6443-90-9 belongs to iodides-buliding-blocks, auxiliary class Pyridines, name is Pyridine Iodochloride complex, and the molecular formula is C5H5ClIN, Safety of Pyridine Iodochloride complex.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Reeves, Jonathan T. published the artcileCopper-catalyzed annulation of 2-formylazoles with aminoiodopyrazoles: Synthesis of new heterocyclic ring systems, Name: 4-Iodo-1-methyl-1H-pyrazol-5-amine, the publication is Journal of Heterocyclic Chemistry (2013), 50(3), 680-683, database is CAplus.

Various 2-formyl azoles underwent CuI/sparteine-catalyzed annulation with 1-substituted 4-iodo-5-aminopyrazoles to produce pyrazolo[3,4-e]pyrrolo[1,2-a]pyrazines and imidazo[1,2-a]pyrazolo[3,4-e]pyrazines. The reaction was demonstrated for 2-formylpyrroles, 2-formylindoles, 2-formylimidazole, and 3-methyl-5-formylpyrazole. 3-Substitution of the iodopyrazole was tolerated.

Journal of Heterocyclic Chemistry published new progress about 1443278-79-2. 1443278-79-2 belongs to iodides-buliding-blocks, auxiliary class Pyrazole,Iodide,Amine, name is 4-Iodo-1-methyl-1H-pyrazol-5-amine, and the molecular formula is C4H6IN3, Name: 4-Iodo-1-methyl-1H-pyrazol-5-amine.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Zhang, Dejiang published the artcileNickel- and Palladium-Catalyzed Cross-Coupling of Stibines with Organic Halides: Site-Selective Sequential Reactions with Polyhalogenated Arenes, COA of Formula: C6H13I, the publication is ACS Catalysis (2022), 12(2), 854-867, database is CAplus.

Herein, the authors disclose a general and efficient method for the synthesis of Sb-aryl and Sb-alkyl stibines by the Ni-catalyzed cross-coupling of halostibines with organic halides. The synthesized Sb-aryl stibines couple with aryl halides to give biaryls efficiently via Pd catalysis. Sequential reactions of stibines with polyhalogenated arenes bearing active C-I/C-Br sites and inactive C-Cl sites successfully proceeded, giving a variety of complex mols. with good site selectivity. Drugs such as diflunisal and fenbufen, as well as a fenofibrate derivative, were synthesized on gram scales in good yields, together with the high recovery of chlorostibine. Also, catalytic mechanisms are proposed based on the results of control experiments

ACS Catalysis published new progress about 638-45-9. 638-45-9 belongs to iodides-buliding-blocks, auxiliary class Iodide,Aliphatic hydrocarbon chain, name is 1-Iodohexane, and the molecular formula is C5H7F3O3, COA of Formula: C6H13I.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Lei, Lin published the artcileSystematic Study on Alkyl Iodide Initiators in Living Radical Polymerization with Organic Catalysts, HPLC of Formula: 31253-08-4, the publication is Macromolecules (Washington, DC, United States) (2014), 47(19), 6610-6618, database is CAplus.

Several low-molar-mass alkyl iodides were studied as initiating dormant species in living radical polymerization with organic catalysts. Primary, secondary, and tertiary alkyl iodides with different stabilizing groups (ester, Ph, and cyano groups) were systematically studied for the rational design of initiating alkyl iodides. The activation rate constants of these alkyl iodides were exptl. determined for quant. comparison. These alkyl iodides were used in the polymerizations of Me methacrylate and Bu acrylate to examine their initiation ability in these polymerizations A telechelic polymer was prepared using an alkyl iodide with a functional group. Alkyl iodides with multi-initiating sites were also studied.

Macromolecules (Washington, DC, United States) published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, HPLC of Formula: 31253-08-4.

Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com