Boron Trifluoride-Mediated Domino Dehydration/Electrophilic Cyclization of Silylalkynols Leading to 2,3-Fused Tricyclic Benzofulvenes
作者:Takashi Okitsu、Takeshi Yoshikawa、Mai Morohashi、Kokoro Aoki、Takayuki Yakura、Ken Sakata、Manabu Hatano
DOI:10.1021/acs.orglett.4c00123
日期:2024.3.1
A BF3-mediated domino dehydration/electrophilic cyclization of silylalkynols to form 2,3-fused tricyclic benzofulvenes was achieved. In the latter step, in situ generated BF3·OH2 enables the electrophilic activation of alkynes. The predominant Z-selectivity of the reaction is also discussed.
实现了甲硅烷基炔醇的BF 3介导的多米诺脱水/亲电环化以形成2,3-稠合三环苯并富烯。在后一步中,原位生成的BF 3 ·OH 2能够实现炔烃的亲电活化。还讨论了反应的主要Z选择性。