Electroreductive intramolecular coupling of γ- and δ-cyanoketones
作者:Tatsuya Shono、Naoki Kise
DOI:10.1016/s0040-4039(00)88791-2
日期:1990.1
Electroreduction of γ- and δ-cyanoketones in i-PrOH gave cyclized products α-hydroxyketones and their dehydroxylated ketones, and this reaction was applied to the synthesis of dihydrojasmone, methyl dihydrojasmonate, and Rosaprostol.
Electroreduction of gamma and delta-cyano ketones in i-PrOH with Sn cathode gave alpha-hydroxy ketones and their dehydroxylated ketones as the intramolecularly coupled products. Guaiazulene, (-)-valeranone, polyquinanes, dihydrojasmone, methyl dihydrojasmonate, and rosaprostol have been synthesized by utilizing this electroreductive intramolecular coupling of gamma and delta-cyano ketones in one of the key steps. Similarly, electroreduction of a mixture of ketone and nitrile gave the corresponding intermolecularly coupled product. The product obtained by the electroreductive intermolecular coupling of (+)-dihydrocarvone with acetonitrile has been found to be the precursor of an effective chiral ligand for the enantioselective addition of diethylzinc to aldehydes.
McAndrew,B.A.; Russell,S.W., Journal of the Chemical Society. Perkin transactions I, 1975, p. 1172 - 1180
作者:McAndrew,B.A.、Russell,S.W.
DOI:——
日期:——
New synthetic methods. A stereocontrolled approach to cyclopentane annelation
作者:Barry M. Trost、Donald E. Keeley
DOI:10.1021/ja00417a048
日期:1976.1
SHONO, TATSUYA;KISE, NAOKI, TETRAHEDRON LETT., 31,(1990) N, C. 1303-1306