Two-Carbon Ring Expansion of 1-Indanones via Insertion of Ethylene into Carbon–Carbon Bonds
作者:Ying Xia、Shusuke Ochi、Guangbin Dong
DOI:10.1021/jacs.9b07445
日期:2019.8.21
A rhodium-catalyzed direct insertion of ethylene into a relatively unstrained carbon-carbon bond in 1-indanones is reported, which provides a two-carbon ring-expansion strategy for preparing seven-membered cyclic ketones. As many 1-indanones are commercially available and ethylene is inexpensive, this strategy simplifies synthesis of benzocycloheptenones that are valuable synthetic intermediates for