NISHIO TAKEHIKO; OMOTE YOSHIMORI, CHEM. LETT., 1979, NO 4, 365-368
作者:NISHIO TAKEHIKO、 OMOTE YOSHIMORI
DOI:——
日期:——
NISHIO TAKEHIKO; OMOTE YOSHIMORI, J. CHEM. SOC. PERKIN TRANS., PART 1, 1981, NO 3, 934-938
作者:NISHIO TAKEHIKO、 OMOTE YOSHIMORI
DOI:——
日期:——
Reduction of β-arylthio- or β-alkylthio-αβ-unsaturated ketones
作者:Takehiko Nishio、Yoshimori Omote
DOI:10.1039/p19810000934
日期:——
The preparation and reduction of β-arylthio- or β-alkylthio-αβ-unsaturatedketones (1) with lithium aluminium hydride or sodium borohydride have been examined. Reduction of the ketones (1) with lithium aluminium hydride gave αβ-unsaturated ketones (2), in which the olefinic (R1) and carbonyl (R2) substituents are reversed compared with the starting αβ-unsaturated ketone (1), or the saturated γ-hydroxy-sulphides
Preparation of thiochromans<i>via</i>thermal cyclization
作者:Anton W. Jensen、Joan Manczuk、David Nelson、Onalee Caswell、Steven A. Fleming
DOI:10.1002/jhet.5570370619
日期:2000.11
Formation of the thiochroman ringsystem is achieved by a two step synthesis that involves heating 3-thiophenyl-1-propanols or 4-thiophenyl-2-butanols in toluene with catalytic amounts of p-toluenesulfonic acid. The propanols are made by the addition of sulfur stabilized carbanions to styrene oxide, ethylene oxide, propylene oxide, and isobutylene oxide. The carbanions are generated by treatment of