作者:Huw M. L. Davies、Robert J. Townsend
DOI:10.1021/jo015617t
日期:2001.10.1
Rh(2)(S-DOSP)(4)-catalyzed decomposition of heteroaryldiazoacetates in the presence of styrene results in highly diastereoselective and enantioselective cyclopropanations. Heteroaryldiazoacetates containing both electron-rich and electron-deficient heterocycles, such as thiophene, furan, pyridine, indole, oxazole, isoxazole, and benzoxazole, are effective in this chemistry. These studies broaden the
Rh(2)(S-DOSP)(4)在苯乙烯存在下催化杂芳基重氮乙酸酯的分解导致高度非对映选择性和对映选择性环丙烷化。含有富电子和电子不足的杂环(例如噻吩,呋喃,吡啶,吲哚,恶唑,异恶唑和苯并恶唑)的杂芳基重氮乙酸酯在该化学中是有效的。这些研究拓宽了同时具有吸电子基团和给电子基团的重氮化合物的范围,这些重氮化合物经历高度非对映选择性的环丙烷化。