T. Chan, T. Aida, P. Lau
1979
Citations
0
Influential Citations
40
Citations
Journal
Tetrahedron Letters
Abstract
Abstract Ethyl propionate can be converted stereoselectively into geometrical isomers of O-ethyl-O-trimethylsilylmethylketene acetal ( 5 ). The E-isomer of 5 condenses with aldehydes by titanium tetrachloride to give stereoselectively the threo isomers of ethyl 2-methyl-3-hydroxy carboxylates.