A Mild and Efficient Method for the Preparation of 1,3-Dithianes from Aldehydes and Ketones
作者:Lutz F. Tietze、Berthold Weigand、Christian Wulff
DOI:10.1055/s-2000-6226
日期:——
A mild method for the preparation of 1,3-dithianes from aldehydes and ketones is described. By using lithium perchlorate as Lewis acid and propane-1,3-dithiol even highly acid-labile β-hydroxy aldehydes can be transformed into the corresponding thioacetals. The desired products were obtained in 41-98% yield.
DAVEY, ANDREW E.;PARSONS, ANDREW F.;TAYLOR, RICHARD J. K., J. CHEM. SOC. PERKIN TRANS. PT 1,(1989) N0, C. 1853-1858
作者:DAVEY, ANDREW E.、PARSONS, ANDREW F.、TAYLOR, RICHARD J. K.
DOI:——
日期:——
Ring Expansion of Spirocyclic Dithioketals via 1,3-Sulfur Migration by the Mitsunobu Reaction
作者:Seiichi Takano、Hirokazu Iida、Kunio Ogasawara
DOI:10.3987/com-93-6444
日期:——
Treatment of the spirocyclic dithioketals of some beta-hydroxy ketone derivatives with diisopropyl azodicarboxylate and triphenylphosphine furnished the ring-expanded products via 1,3-sulfur migration.
Bifunctional cyclopropyl reagents: a total synthesis of 7-E,9-Z methyl trisporate B
作者:Barry M. Trost、Paul L. Ornstein
DOI:10.1016/s0040-4039(00)88036-3
日期:1983.1
2-Hydroxymethylcyclopropyl phenyl sulfide combined with sulfenylation-dehydrosulfenylation permits a stereo- and chemoselective approach to trisporic acids.