Gold(I)-Catalyzed Rearrangement of Propargyl Benzyl Ethers: A Practical Method for the Generation and in Situ Transformation of Substituted Allenes
作者:Benoit Bolte、Yann Odabachian、Fabien Gagosz
DOI:10.1021/ja1020469
日期:2010.6.2
of benzyl propargyl ethers react with a gold(I) catalyst to furnish variously substituted allenes via a 1,5-hydride shift/fragmentation sequence. This transformation is rapid and practical. It can be performed under very mild conditions (room temperature or 60 degrees C) using terminal as well as substituted alkyne substrates bearing a primary, secondary, or tertiary benzyl ether group. The allenes
一系列苄基炔丙基醚与金 (I) 催化剂反应,通过 1,5-氢化物转移/断裂序列提供各种取代的丙二烯。这种转变迅速而实用。它可以在非常温和的条件下(室温或 60 摄氏度)使用带有伯、仲或叔苄基醚基团的末端和取代炔底物进行。由此形成的丙二烯可以与内部或外部亲核试剂原位反应,对应于整个还原取代过程,以产生更多官能化的化合物。