作者:Farina Brackmann、Mazen Es-Sayed、Armin de Meijere
DOI:10.1002/ejoc.200400600
日期:2005.6
converted into the spirocyclopropanated five-membered ring analogue 7a of Iprodione (1) in five steps with an overall yield of 28 %. The spirocyclopropanated five-membered ring analogue 8a was prepared from tert-butyl N-[1-(hydroxymethyl)cyclopropyl]carbamate (10) in five steps with an overall yield of 19 %. En route to the spirocyclopropanated six-membered ring analogues of Iprodione (1), the oxalic
1-(叔丁氧基羰基氨基)环丙烷甲酸甲酯 (9) 分五步转化为螺环丙烷化的异菌二酮 (1) 的五元环类似物 7a,总产率为 28%。由 N-[1-(羟甲基) 环丙基]氨基甲酸叔丁酯 (10) 分五步制备螺环丙烷化五元环类似物 8a,总产率为 19%。在制备异菌脲 (1) 的螺环丙烷化六元环类似物的过程中,草酸二酰胺 5b 和 6b 可以分别从 9 或 10 以 33 % 或 19 % 的产率获得。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)