Alkylidene Carbene from Silyl Vinyl Iodide Provides Mechanistic Insights on Trimethylenemethane Diyl-Mediated Tandem Cyclizations
作者:Dong Whan Jee、Jinnie Myung、R. Daniel Little、Sunkyu Han、Hee-Yoon Lee
DOI:10.1021/acs.orglett.2c01622
日期:2022.6.24
We describe a method to generate alkylidenecarbenes via tetramethylammonium-fluoride-induced desilylation of silyl vinyl iodides. The reversible carbenegenerationfrom an iodovinyl anion enabled us to unearth mechanistic aspects of the trimethylenemethane (TMM) diyl cyclization reaction that could not be explored via previous methods. We observed that a slow diyl–diylophile cycloaddition can induce