已经制备了多种中等大小的硫代内酯,并与亲核试剂缩合,在用甲基碘淬灭后得到烷基化硫代缩醛。在自由基条件下使用三苯基氢化锡进行还原脱硫可以快速有效地提供相应的环醚,并且在大多数情况下具有完全立体控制。该方法已通过构建短杆菌毒素 A (1) 的 B 环和 D 环模型系统以及 (±)-lauthisan 的合成得到证明
Synthesis of medium-sized ring ethers from thionolactones. Applications to polyether synthesis
作者:K. C. Nicolaou、D. G. McGarry、P. K. Somers、B. H. Kim、W. W. Ogilvie、G. Yiannikouros、C. V. C. Prasad、C. A. Veale、R. R. Hark
DOI:10.1021/ja00173a013
日期:1990.8
Reductive desulfurization using triphenyltin hydride under radical conditions afforded the corresponding cyclicethers rapidly and efficiently and, in most cases, with complete stereocontrol. This methodology has been proven through the construction of model systems of rings B and D of brevetoxin A (1) and a synthesis of (±)-lauthisan
已经制备了多种中等大小的硫代内酯,并与亲核试剂缩合,在用甲基碘淬灭后得到烷基化硫代缩醛。在自由基条件下使用三苯基氢化锡进行还原脱硫可以快速有效地提供相应的环醚,并且在大多数情况下具有完全立体控制。该方法已通过构建短杆菌毒素 A (1) 的 B 环和 D 环模型系统以及 (±)-lauthisan 的合成得到证明
Degradation of aldehydes to one carbon lower homologs
Degradation of aldehydes to one carbon lower homologs has been achieved by using a mixture of N-methylmorpholine, N-methylmorpholine N-oxide, a catalytic amount of OsO4 and NaIO4 in a mixture of acetone/H2O.
通过在丙酮/ H 2 O的混合物中使用N-甲基吗啉,N-甲基吗啉N-氧化物,催化量的OsO 4和NaIO 4的混合物,已将醛降解为一个低碳同系物。