Further addition of methoxide in methanol yields preferentially Z 1-chloro-2-fluoro-3,3,3-trimethoxypropene and a small amount of dimethyl malonate. The ortho ester undergoes facile hydrolysis during the reaction and work up to form the acrylate ester, Z methyl 2-fluoro-3-chloroacrylate. A ...
Complex 1 undergoes a reaction with each of the reagents HCl, [Aul2]–, HgCl(C6H4Me-p), HgCl2 and SO2 forming respectively RuMeCl2... AK Burrell,GR Clark,CEF Rickard,... - 《Journal of the Chemical Society Dalton Transactions》 被引量: 62发表: 1991年 Syntheses and Reactions of a ...
Photochemical reaction of the olefin with hydrogen bromide gives as the major products a mixture of erythro- and threo-1-bromo-1,2,3,3,3-pentafluoropropane and 2-bromo-1,1,1,2,3-pentafluoropropane in the ratio 70 : 16. The threo-adduct undergoes dehydrobromination to give a mixture of...
A series of haloacrylic acid dehalogenases of the tautomerase structural superfamily also catalyze addition to sp2 hybridized carbons with bound halogens although these activate water rather than a carboxylate side chain for nucleophilic reaction (Fig. 4).44,45 Subsequent collapse of the tetrahedral ...
and fire suppression agents in liquid or gaseous form. The disclosed compositions can act as a working fluid used to carry heat from a heat source to a heat sink. Such heat transfer compositions may also be useful as a refrigerant in a cycle wherein the fluid undergoes a phase change, tha...
Further addition of methoxide in methanol yields preferentially Z 1-chloro-2-fluoro-3,3,3-trimethoxypropene and a small amount of dimethyl malonate. The ortho ester undergoes facile hydrolysis during the reaction and work up to form the acrylate ester, Z methyl 2-fluoro-3-chloroacrylate. A ...
The calculated MERP agrees to the general reaction scheme developed for the reactions of ionized alkenes with nucleophiles. In particular, the initial reaction step for substitution and oxidation, which competes with ET, is addition of the nucleophile to the ionized double bond. No energy minimum ...
This new bis-ogranocopper reagent undergoes selective one-pot addition to two different electrophiles in good to excellent yields.doi:10.1016/S0040-4039(00)60989-9Douglas E. StackReuben D. RiekeTetrahedron LettersD. E. Stack et al., " Formation of a New Bis-Organocopper Reagent from the ...
1-3 In one approach (Path A), propargyl alcohol is treated with phenylsulfenyl chloride to give a thermally unstable thioperoxide intermediate, which spontaneously undergoes a thermal [2,3] rearrangement to the more stable phenylsufinyl allene; oxidation with hydrogen peroxide in acetic acid at ...
The Prins reaction between propene and formaldehyde was studied over H-BEA, H-FAU, H-MFI and H-MOR zeolites at 150 °C in liquid phase. It was found that the H-BEA sample is the most active and selective toward buta-1,3-diene; the H-MFI is a potential catalyst for 3-buten-1-ol...