41920-32-5Relevant academic research and scientific papers
Synthetic approach to benzocyclobutenones using visible light and a phosphonate auxiliary
Yano, Takaaki,Kawasaki, Tairin,Yuhki, Tatsuya,Ishida, Naoki,Murakami, Masahiro
, p. 1224 - 1227 (2018)
Reported herein is a two-step procedure to synthesize benzocyclobutenones from (o-alkylbenzoyl)phosphonates. It consists of a visible-light-driven cyclization reaction forming phosphonate-substituted benzocyclobutenols and subsequent elimination reaction of the H-phosphonate, which assumes a key role as the recyclable auxiliary. A wide variety of functionalized benzocyclobutenones, which include those difficult to synthesize by conventional methods, are efficiently synthesized.
