m-Hydroxyphenyl substituted compounds of formula
where R is an organic radical and R' is hydrogen or an organic radical are prepared by dehydrohalogenating a compound of formula
(where X is chlorine or bromine, and R and R' have the above meanings). Preferred novel starting materials of formula (ll) are of the formula
(where R1 and X are as above, n is 2, 3 or 4, R2 is hydrogen or lower alkyl and R3 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl(lower)alkyl or aryl(lower)alkyl).
通过脱氢卤化式化合物(其中 X 为氯或溴,R 和 R' 具有上述含义)制备式(ll)的间羟基苯基取代化合物,其中 R 为有机基,R'为氢或有机基。 式(ll)的优选新型起始原料为式(其中 R1 和 X 如上,n 为 2、3 或 4,R2 为氢或低级烷基,R3 为氢、低级烷基、低级烯基、低级炔基、环烷基(低级)烷基或芳基(低级)烷基)。
HEASLEY, VICTOR L.;LOUIE, TIMOTHY J.;LUTTRULL, DAVID K.;MILLAR, MARK D.;M+, J. ORG. CHEM., 53,(1988) N 10, 2199-2204
作者:HEASLEY, VICTOR L.、LOUIE, TIMOTHY J.、LUTTRULL, DAVID K.、MILLAR, MARK D.、M+
DOI:——
日期:——
US4463177A
申请人:——
公开号:US4463177A
公开(公告)日:1984-07-31
Effect of N-bromosuccinimide (NBS) and other N-brominating agents on the bromination of .alpha.,.beta.-unsaturated ketones in methanol
作者:Victor L. Heasley、Timothy J. Louie、David K. Luttrull、Mark D. Millar、Hal B. Moore、Danny F. Nogales、Andreas M. Sauerbrey、Amy B. Shevel、Terry Y. Shibuya