An ylide (/ˈɪlaɪd/) or ylid (/ˈɪlɪd/) is a neutral dipolar molecule containing a formally negatively charged atom (usually a carbanion) directly attached...
10 KB (1,152 words) - 15:53, 3 June 2024
Wittig reaction (redirect from Phosphonium ylide)
chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide called a Wittig reagent. Wittig reactions are most commonly used to convert...
15 KB (1,600 words) - 17:50, 27 May 2024
Nitrile ylides also known as nitrilium ylides or nitrilium methylides, are generally reactive intermediates formally consisting of a carbanion of an alkyl...
3 KB (389 words) - 15:25, 18 November 2023
Azomethine ylides are nitrogen-based 1,3-dipoles, consisting of an iminium ion next to a carbanion. They are used in 1,3-dipolar cycloaddition reactions...
18 KB (1,988 words) - 01:46, 19 April 2024
1,3-Dipolar cycloaddition (section Carbonyl ylides)
dipole or a nucleophilic dipole, which includes azomethine ylide, carbonyl ylide, nitrile ylide, azomethine imine, carbonyl imine and diazoalkane. These...
65 KB (6,396 words) - 21:04, 1 August 2024
Corey and Michael Chaykovsky. The reaction involves addition of a sulfur ylide to a ketone, aldehyde, imine, or enone to produce the corresponding 3-membered...
22 KB (2,314 words) - 20:36, 31 July 2024
Dicarbon monoxide (redirect from Bestmann's Ylide)
15596-07-3) contains the C2O functionality. Sometimes called Bestmann's Ylide, it is a yellow solid. Frenking, Gernot; Tonner, Ralf "Divalent carbon(0)...
4 KB (313 words) - 00:53, 27 August 2023
charges on adjacent atoms is called an ylide, so sometimes the carbanion form of TPP is referred to as the "ylide form". In several reactions, including...
9 KB (868 words) - 17:30, 18 July 2024
Peterson olefination (redirect from Silicon ylide)
The Peterson olefination (also called the Peterson reaction) is the chemical reaction of α-silyl carbanions (1 in diagram below) with ketones (or aldehydes)...
7 KB (727 words) - 03:28, 9 March 2024
analogous to nitrile oxide) Carbonyl imines Some ylides Azomethine ylide Nitrile ylide (RCNCR'2) Carbonyl ylide Thiosulfines (R2CSS) Francis A. Carey, Richard...
3 KB (228 words) - 16:45, 1 November 2023