A Benzoyl Peroxide/Diphenyl Diselenide Binary System for Functionalization of Alkynes Leading to Alkenyl and Alkynyl Selenides

Autor: Tomokazu Saeki, Motohiro Sonoda, Akihiro Nomoto, Shintaro Kodama, Shinichi Kawaguchi, Akiya Ogawa, Kei Mihara, Shinya Higashimae
Rok vydání: 2017
Předmět:
Zdroj: The Journal of organic chemistry. 82(23)
ISSN: 1520-6904
Popis: Binary systems consisting of benzoyl peroxide (BPO) and diorganyl diselenide are effective in the selective benzoyloxyselenation of internal alkynes to afford the corresponding β-(benzoyloxy)alkenyl selenides in good yields. In contrast to internal alkynes, terminal alkynes undergo a novel C(sp)–H substitution with the phenylseleno group of the BPO/(PhSe)2 system, providing alkynyl selenides in good yields. Both selenation reactions might proceed via benzoyloxy selenide (PhC(O)O–SeAr) as a key intermediate for electrophilic addition to alkynes. The products alkenyl and alkynyl selenides are expected to be useful synthetic intermediates in organic synthesis.
Databáze: OpenAIRE