Di-tert-butyl peroxide (DTBP) promoted dehydrogenative coupling: an expedient and metal-free synthesis of oxindoles via intramolecular C(sp<sup>2</sup>)–H and C(sp<sup>3</sup>)–H bond activation
作者:Biplab Mondal、Brindaban Roy
DOI:10.1039/c5ra09055e
日期:——
An efficient di-tert-butyl peroxide (DTBP) promoted synthesis of oxindole has been developed. This methodology involves C(sp3)–H and C(sp2)–H bond activation under metal-free conditions. This synthetic approach towards oxindole synthesis avoids bases and hazardous iodine reagents unlike other methodologies developed so far. This metal- and base-free protocol is operationally simple and ecofriendly