HAMANA, HIROSHI;SUGASAWA, TSUTOMU, CHEM. LETT., 1984, N 9, 1591-1594
作者:HAMANA, HIROSHI、SUGASAWA, TSUTOMU
DOI:——
日期:——
STEREO- AND REGIO-SELECTIVE ALDOL-TYPE REACTIONS OF ALKYLPYRIDINES WITH BENZALDEHYDE
作者:Hiroshi Hamana、Tsutomu Sugasawa
DOI:10.1246/cl.1984.1591
日期:1984.9.5
Stereo- and regio-selectivity in the reaction of alkylpyridines with benzaldehyde were studied. Erythro-selectivity could be obtained in the reaction of 2-alkylpyridine with benzaldehyde in the presence of dialkylboryl triflate and triethylamine. Substitution at the 2- or 4-position of 2,4-lutidine could be controlled by the combination of dialkylboryl triflate and an aliphatic tertiary amine. The steric effect had an important role in the reaction of 4-picoline and lepidine.