One-Pot Preparation of 1-Acyl-1-methoxycarbonyloxiranes and 1-Acyl-1-cyanooxiranes from Methyl 3-Hydroxy-2-methylenealkanoates or 3-Aryl-3-hydroxy-2-methylenepropanenitriles
作者:André Foucaud、Eliane le Rouillé
DOI:10.1055/s-1990-27016
日期:——
The reaction of sodium hypochlorite with methyl 3-hydroxy-2methylenealkanoates or 3-aryl-3-hydroxy-2-methylenepropanenitriles, dispersed on silica gel, in acetonitrile leads to oxidation of the alcohol function and epoxidation of the methylene group to give 2,2-disubstituted oxiranes in good yield.
P-ylides with activated allylic alcohols has been developed. This protocol utilizes a calcium catalyst to facilitate the cleavage of C–OH bonds and enables smooth dehydrative cross-coupling with P-ylides, resulting in water as the sole by-product. Remarkably, this transformation exhibits excellent tolerance towards a diverse range of allylic alcohols and P-ylides. Furthermore, the subsequent Wittig reaction
Selective Mono and Biscondensations of Dialdehydes with Methylacrylate
作者:Yves Fort、Marie-Christine Berthe、Paul Caubére
DOI:10.1080/00397919208019308
日期:1992.5
DABCO-catalysed mono and biscondensations of dialdehydes with methylacrylate can be easily performed with good to high selectivity under mild conditions.
Synthesis of diaza [7,7] paracyclophanetetraene and diaza [7,2,7,2] paracyclophanehexaene
作者:Patrick Bauchat、André Foucaud
DOI:10.1016/s0040-4039(01)93887-0
日期:1989.1
FOUCAUD, ANDRE;LE, ROUILLE ELIANE, SYNTHESIS (BRD),(1990) N, C. 787-789