Rh2(oac)4-catalyzed reactions of methyl diazoacetate with 1,3-oxazolidines and 1,3-oxathiolanes
作者:M. D. Khanova、R. M. Sultanova、S. L. Khursan、V. A. Dokichev、Yu. V. Tomilov
DOI:10.1007/s11172-006-0441-6
日期:2006.8
Methoxycarbonylcarbene generated by catalytic decomposition of methyl diazoacetate in the presence of Rh2(OAc)4, is regioselectively inserted into the C(2)-O bond of 3-alkyl-2-phenyl-1,3-oxazolidines and into the C(2)-S bond of 2-phenyl-1,3-oxathiolane. Study by the competitive reaction method demonstrated that the relative reactivity toward the insertion of the methoxycarbonylcarbene fragment into
在 Rh2(OAc)4 存在下通过重氮乙酸甲酯的催化分解生成的甲氧羰基卡宾被区域选择性地插入 3-烷基-2-苯基-1,3-恶唑烷的 C(2)-O 键和 C(2 )-S 键的 2-苯基-1,3-oxathiolane。通过竞争反应方法的研究表明,在 1,3-二氧戊环、1,3-恶唑烷和 1,3-氧杂硫杂环戊烷系列中,甲氧基羰基卡宾片段插入 C-杂原子键的相对反应性增加。