[2] Univ Alicante, Fac Ciencias, ISO, E-03080 Alicante, Spain
来源:
SYNTHESIS-STUTTGART
|
2005年
/
16期
关键词:
addition reactions;
catalysis;
cyanohydrin derivatives;
green chemistry;
solvent-free reactions;
D O I:
10.1055/s-2005-872096
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A very simple one-step environmentally friendly procedure for the synthesis of 0-substituted cyanohydrins from aldehydes and ketones, in the absence of solvent, employing minimum amounts of the corresponding cyanides has been optimised. Aldehydes react more rapidly than ketones using triethylamine as catalyst offering in both cases almost quantitative yields of the corresponding 0-trimethylsilyl, 0-methoxycarbonyl, 0-benzoyl and 0-acetyl cyanohydrins.