La reaction a une utilite synthetique generale et permet d'obtenir des composes carbonyles (cetones, aldehydes, esters) β-aryles
La 反应 a une utilite synthetique generale et permet d'obtenir des composes carbonyles (cetones, aldehydes,esters) β-aryles
Electron transfer processes. 53. Homolytic alkylation of enamines by electrophilic radicals
作者:Glen A. Russell、Keyang Wang
DOI:10.1021/jo00011a007
日期:1991.5
The electrophilic radicals R. = p-O2NC6H4CH2. or Me2C(NO2). add readily to CH2 = C(NMe2)2 to yield RCH2C(NMe2)2., which undergoes electron transfer with p-O2NC6H4CH2Cl or Me2C(NO2)2 to regenerate R.. Hydrolysis yields p-O2NC6H4CH2CONMe2 and Me2C = CHC(NMe2)2+, respectively. p-Nitrobenzyl radicals add readily to N-pyrrolidino- or N-morpholino-1-cycloalkenes to yield after hydrolysis the alpha-(p-nitrobenzyl)cycloalkanones. Photostimulated alkylation of N-pyrrolidino-1-cycloalkenes by Me2C(NO2)2 is not observed although in competitive reactions between the enamine and Me2C = NO2Li, the product from attack of Me2C(NO2). upon the enamine double bond is formed. The N-pyrrolidino-1-cycloalkenes are more reactive toward p-O2NC6H5CH2. than their morpholino analogues.
RUSSELL, GLEN A.;WANG, KEYANG, J. ORG. CHEM., 56,(1991) N1, C. 3475-3479
作者:RUSSELL, GLEN A.、WANG, KEYANG
DOI:——
日期:——
AOKI, SATOSHI;FUJIMURA, TSUTOMU;NAKAMURA, EIICHI;KUWAJIMA, ISAO, J. AMER. CHEM. SOC., 110,(1988) N 10, 3296-3298