Blaszykowski Christophe, Harrak Youssef, Gonçalves Maria-Helena, Cloarec Jean-Manuel, Dhimane Anne-Lise, Fensterbank Louis, Malacria Max
Laboratoire de Chimie Organique, UMR CNRS 7611, Université Pierre et Marie Curie, Case 229, 4 place Jussieu, 75252 Paris Cedex 05, France.
Org Lett. 2004 Oct 14;6(21):3771-4. doi: 10.1021/ol048463n.
[reaction: see text] Transannular PtCl(2)-catalyzed cycloisomerizations open a new route to cyclopropanic tricyclic systems. Ketones A or C were efficiently prepared from the same cycloundec-5-en-1-yne precursor B, depending on the substituent at the propargylic position (either benzoate or methoxy).
[反应：见正文] 跨环铂（II）氯化物催化的环异构化反应为环丙烷型三环体系开辟了一条新途径。根据炔丙基位置的取代基（苯甲酸酯或甲氧基），由相同的环十一碳-5-烯-1-炔前体B可高效制备酮A或C。
