Category: 31253-08-4

Cao, Lidong published the artcilep-MeOC₆H₄N₂⁺BF₄^–/TiCl₃: a novel initiator for halogen atom-transfer radical reactions in aqueous media, Category: iodides-buliding-blocks, the publication is Tetrahedron Letters (2008), 49(52), 7380-7382, database is CAplus.

With the combination of p-methoxybenzenediazonium tetrafluoroborate with TiCl₃ as the initiator, a wide range of halogen atom-transfer radical addition or cyclization reactions could be efficiently implemented in aqueous solution at room temperature

Tetrahedron 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, Category: iodides-buliding-blocks.

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

Ahn, Jin Hee published the artcileA new synthesis of γ-dialkoxy carboxylic acid derivatives via radical coupling reaction of α-halo acid derivatives with vinyl ethers, Formula: C5H9IO2, the publication is Synlett (1996), 1224-1226, database is CAplus.

γ-Dialkoxy carboxylic acid derivatives were prepared conveniently by the radical coupling reaction of α-halo carboxylic acid derivatives with vinyl ethers in 65-95% yield using Ni₂B(cat.)-BER in MeOH in the presence of NaI.

Synlett 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, Formula: C5H9IO2.

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

Imamoto, Tsuneo published the artcileCarbon-carbon bond-forming reactions using cerium metal or organocerium(III) reagents, HPLC of Formula: 31253-08-4, the publication is Journal of Organic Chemistry (1984), 49(21), 3904-12, database is CAplus.

Cerium amalgam is an effective reagent for the chemoselective preparation of homoallylic alcs. from allyl halides and carbonyl compounds and for the Reformatskii-type reaction of α-halo esters with carbonyl compounds Organocerium(III) reagents were conveniently generated by the reaction of organolithiums with CeI₃ or CeCl₃ and they react cleanly at -78 to -65° with various carbonyl compounds to afford the addition products in high yields. The substrates are susceptible to enolization or metal-halogen exchange with simple organolithiums. The same reagents also react with α,β-unsaturated carbonyl compounds to yield 1,2-addition products in high selectivity.

Journal of Organic Chemistry 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

Uegaki, Hiroko published the artcileLiving radical polymerization of acrylates with rhenium(V)-based initiating systems: ReO₂I(PPh₃)₂/Alkyl Iodide, Computed Properties of 31253-08-4, the publication is ACS Symposium Series (2000), 196-206, database is CAplus.

Rhenium(V) iododioxobis(triphenylphosphine) [ReO₂I(PPh₃)₂], a group 7 transition metal complex, induced living radical polymerizations of Me and Bu acrylates in conjunction with an iodide initiator such as CH₃CH(Ph)I and (CH₃)₂C(CO₂Et)I in the presence of Al(Oi-Pr)₃, where the reaction was faster than the NiBr₂(Pn-Bu₃)₂-mediated. The number-average mol. weights of the obtained polymers increased in direct proportion to monomer conversion, and the mol. weight distributions were relatively narrow throughout the polymerizations (M_w/M_n ∼ 1.6). The polymerization most probably proceeds via the rhenium-catalyzed homolytic cleavage of the polymer C-I terminal originated from the iodide initiator, as indicated by the ¹H NMR anal. of the polymer terminal structure and quenching study of the polymerization with a stable nitroxide radical. In contrast, a bromide initiator like CCl₃Br led to an uncontrolled acrylate polymerization with the rhenium(V) complex. The iodide/ReO₂I(PPh₃)₂ initiating system also induced a fast polymerization of Me methacrylate, though the polymerization was not controlled.

ACS Symposium Series 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 C9H6BrNO, Computed Properties of 31253-08-4.

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

Yamakawa, Koji published the artcileStudies on the terpenoids and related alicyclic compounds. XXIII. Total synthesis of (±)-phomenone, (±)-3-epiphomenone, (±)-ligularenolide, and (±)-furanoligularanone, Application In Synthesis of 31253-08-4, the publication is Chemical & Pharmaceutical Bulletin (1980), 28(11), 3265-74, database is CAplus.

(±)-Phomenone (I, Z = α-OH,β-H), (±)-3-epiphomenone (I, Z = α-H,β-OH) (±)-ligularenolide (II), and (±)-furanoligularanone (III) were prepared from naphthalenedione IV via the monoketals V (R = CMe:CH₂) or VI. E.g., epoxidation of V (R = CMe:CH₂) gave V (R = 2-methyl-2-oxiranyl), whose ring cleavage in the presence of LiNEt₂ gave V [R = HOCH₂C(:CH₂)], epoxidation of which gave I (Z = OCH₂CH₂O), whose deketalization followed by NaBH₄ reduction gave (±)-3-epiphomenone (I, Z = α-H, β-OH).

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 C6H17NO3Si, Application In Synthesis of 31253-08-4.

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

Yasuda, Makoto published the artcileRadical coupling of iodocarbonyl compounds with butenylindium generated by transmetalation between cyclopropylmethylstannane and indium halides, Related Products of iodides-buliding-blocks, the publication is Organometallics (2009), 28(1), 132-139, database is CAplus.

The reaction of cyclopropylmethylstannane C₃H₅CH₂SnBu₃ (1) with α-iodocarbonyl compounds R¹R²C(I)COX (2) in the presence of either InBr₃ or InCl₃ gave the C-C coupling products, 2-cyclopropylethyl carbonyls C₃H₅CH₂CR¹R²COX (3; R¹, R² = H, Me; X = PhO, PhCH₂O, CH₂:CHCH₂O, ^tBuO, Et₂N, Ph; R¹R²C(I)COX = 3-iodo-γ-butyrolactone). Various types of iodocarbonyl compounds such as esters, amides, and ketones were applied to this system to afford the corresponding compounds 3. The reaction mechanism comprises transmetalation between cyclopropylmethylstannane and indium halides, providing 3-butenylindium dihalide and di-3-butenylindium halide, as confirmed by NMR spectroscopy. The reactivity of di-3-butenylindium halide was greater than that of monobutenyl species. The active species, di-3-butenylindium halide, was stabilized by complexation using DPPE, and its structure was analyzed using x-ray crystallog. The solid state of the complex shows a linear structure with a core (-Cl-In-Cl-In-P-C-C-P-In-)_n with five-coordinated indium centers. The reaction between 1 and 2, mediated by indium halides, proceeded in a radical manner, regenerating after recyclization of 6-oxo-1-indiohex-3-yl radical the initial cyclopropylmethyl moiety. The in situ-generated alkylindium species and a small amount of oxygen, which can be supplied by atm. air, initiated the radical reaction.

Organometallics 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 C25H23NO4, Related Products of iodides-buliding-blocks.

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

Biilmann, Einar published the artcileBetaines. IV. The mechanism of the racemization of the salts of ethyl propiobetainate, Name: Ethyl 2-Iodopropionate, the publication is Bulletin de la Societe Chimique de France, Memoires (1936), 2295-2305, database is CAplus.

cf C. A. 29, 2916.5. d-and l-Et propiobetainate iodide, m. 130-1°, [α]_D⁴⁸ 19.64°, are racemized at the same rate by d-EtMeCHCH₂NEt₂ (I), b₇₆₅ 150-1°, d₄²⁰ 0.7515, [α]_D²⁰ 17.96°, and the racemic form of Et propiotrimethylbetainate is not rendered active by treatment with I or nicotine. This shows that there is no addition compound of the betainate and amine involved in the racemation. l-α-Phenylethyltrimethylammonium iodide, m. 157-7.5°, [α]_D²⁰ 19.60°, which cannot enolize, is not racemized by EtONa. This indicates that racemization occurs through the enol form, and reagents such as NaOEt and Me₃N which can react with enols, increase their concentration and so hasten racemization. This effect is complicated by the fact that the pos. N in the betaines also favors racemization. Thus, in alc. solution MeCH(NMe₃)CO₂EtI is racemized even by such weak bases as Et₃P. MeCHNH₂CO₂Et is not racemized by NaOEt or Et₃N, but MeCH(NMe₂)CO₂Et, b₇₆₇ 155.6-6.5°, d₄²⁰ 0.9207, [α]_D²⁰ 5.58°, is slowly racemized by NaOEt.

Bulletin de la Societe Chimique de France, Memoires 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, Name: Ethyl 2-Iodopropionate.

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

Antia, M. B. published the artcileReformatskiǐ condensation of ketonic esters with halo esters, Recommanded Product: Ethyl 2-Iodopropionate, the publication is Agra Univ. J. Research, Science (1954), 197-201, database is CAplus.

Condensation of Et levulinate (I) with halo esters yields substituted butyrolactones. Thus 7.2, g. I, 8.1 g. MeCHBrCO₂Et (b₂₅₀ 124°), and 3.3 g. Zn in dry C₆H₆ heated 0.5 hr. on a water bath, the mixture treated with 2N H₂SO₄, the C₆H₆ layer washed with 10% Na₂CO₃, dried, the C₆H₆ evaporated, and the residue distilled gave 4.4 g. O.CO.(CH₂)₂.CMeCHRCO₂Et (II, R = Me) (III), b₄ 160°, b₃ 156°. The same reaction in xylene gave 4 g. III. MeCHICO₂Et (b₇₁₄ 196°) did not react with I under either of the above conditions. Similarly 10 g. EtCHBrCO₂Et (b₇₅ 106°) gave 3.5 g. II (R = Et), b₆ 183-5°, and 15 g. Et 2-bromolaurate (b₁₀ 172-4°) gave 2.0 g. II [R = Me(CH₂)₉], b₄ 162-4°. AcCH₂CO₂Et 6.5, ClCO₂Et (IV) 5.4, Zn 3.2, reduced Cu powd. 0.2 g., and 30 ml. dry C₆H₆ refluxed 8 hrs., during which time 1 g. IV was added, gave 2 g. EtO₂CCH₂CMe(OH)CO₂Et, b₈ 156-60°.

Agra Univ. J. Research, Science 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, Recommanded Product: Ethyl 2-Iodopropionate.

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

Takeuchi, Naoki published the artcileSyntheses and anti-histaminic and anti-allergic activities of hexahydro-4-hydroxy-1-benzofuran-2-ones, Name: Ethyl 2-Iodopropionate, the publication is Chemical & Pharmaceutical Bulletin (1984), 32(6), 2249-61, database is CAplus and MEDLINE.

Benzofuranones I (R = H, R¹ = β-HO; R = Me, R¹ = α-HO, β-HO), which are related to the 6β-hydroxyeremophilenolides which show anti-histaminic and anti-allergic activities, were prepared from dimedone via dihydroxybenzofuranones II followed by dehydration reactions. I (R = H, Me; R¹ = β-HO) have anti-histaminic activity and cause marked inhibition in the Schultz-Dale reaction.

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 C38H74Cl2N2O4, Name: Ethyl 2-Iodopropionate.

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

Kotani, Yuzo published the artcileTransition metal-mediated living radical polymerization of styrene: design of initiating systems, COA of Formula: C5H9IO2, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (1999), 40(2), 468-469, database is CAplus.

A review with 5 references on development of catalysts based on transition metals for living radical polymerization of styrene. In transition metal-mediated living radical polymerization of styrene, ruthenium(II) complexes were used as catalysts and various haloorg. compounds, especially iodo-organic compounds, e.g., phenylethyl iodide, were used as initiators. The initiators were evaluated in terms of control of mol. weight and polydispersity. Complexes of Rhenium(V), were also used in conjunction with alkyl iodide initiators. Initiating systems based on half-metallocene-type iron(II) catalysts were developed, e.g., FeCp(CO)2I induced living radical polymerization of styrene resulting in polystyrene with narrow mol. weight distribution (Mw/Mn_p1.05-1.09).

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) 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, COA of Formula: C5H9IO2.

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