α,β-Epoxy Sulfoxides as Useful Intermediates in Organic Synthesis. II. A Novel Synthesis of α-Sulfenylated Ketones and α-Sulfenylated Aldehydes from α,β-Epoxy Sulfoxides
作者:Tsuyoshi Satoh、Takumi Kumagawa、Koji Yamakawa
DOI:10.1246/bcsj.58.2849
日期:1985.10
Treatment of α,β-epoxy sulfoxides, prepared from 1-chloroalkyl phenyl sulfoxides and carbonyl compounds, with various kinds of alkane- or arenethiolates afforded α-sulfenylated ketones in good yields. This method also offered a novel procedure for a synthesis of α-sulfenylated aldehydes.
Treatment of α,β-epoxy sulfoxides with excess sodium phenylselenide and various kinds of alkylthiolates gave dialkyl ketones and α-sulfenylated carbonylcompounds, respectively, in good yields under mild conditions.
New synthesis of conjugated ketones from 2-phenylthio-allyl and -allenyl alcohols
作者:Richard C. Cookson、Philip J. Parsons
DOI:10.1039/c39780000821
日期:——
2-Phenylthioallyl alcohols (I) rearrange in acid to α-phenylthioethyl ketones (II) which, on oxidation and elimination, yield vinyl ketones; through a similar reaction sequence 2-phenylthioallenyl alcohols (IX) give the 2,4-dienones (XII).