4-ethyl cyclohexanepropanal 、 、 4-乙基苯甲醛 在
3-(4-乙基-苯基)-丙醛 作用下,
以to obtain 3-(4-ethyl-phenyl)-propionaldehyde (878 g) with a boiling point of 129° C. at a pressure of 12 mmHg 3-(4-Ethyl-phenyl)-propionaldehyde (350 g)的产率得到3-(4-乙基-苯基)-丙醛
参考文献:
名称:
NOVEL 4-ALKYL CYCLOHEXANEPROPANAL COMPOUNDS AND THEIR USE IN PERFUME COMPOSITIONS
Iron-Catalyzed α,β-Dehydrogenation of Carbonyl Compounds
作者:Xiao-Wei Zhang、Guo-Qing Jiang、Shu-Hui Lei、Xiang-Huan Shan、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.orglett.1c00043
日期:2021.3.5
An iron-catalyzedα,β-dehydrogenation of carbonylcompounds was developed. A broad spectrum of carbonyls or analogues, such as aldehyde, ketone, lactone, lactam, amine, and alcohol, could be converted to their α,β-unsaturated counterparts in a simple one-step reaction with high yields.
described. This novel catalytic transformation proceeds in the presence of Pd(acac)2/1,2‐bis((di‐tert‐butylphosphan‐yl)methyl)benzene (btbpx) (L4) and allows for an efficient and straightforward access to a range of difluoromethylated esters in high yields and regioselectivities. The synthetic utility of the protocol is showcased in the practical synthesis of a Cyclandelate analogue using this methodology
NOVEL 4-ALKYL 1-(3-METHOXY-2-PROPEN-1-YL) BENZENE COMPOUNDS AND THEIR USE IN PERFUME COMPOSITIONS
申请人:Levorse, Jr. Anthony T
公开号:US20110118509A1
公开(公告)日:2011-05-19
The present invention is directed to novel 4-alkyl 1-(3-methoxy-2-propen-1-yl)benzene compounds and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the novel compounds.
method for the synthesis of substituted pyridines with aldehydes and NH4OAc under mild conditions using air as the oxidant was developed. This oxidative cyclization process involves directC–Hbondfunctionalization, C–C/C–N bond formation and C–Cbondcleavage.
The invention provides a novel wrinkle-improving agent that has an effect of improving wrinkles, that does not entail problems of safety or pain even when applied to the skin, and that contains a very safe substance as an active component. A discovery was made that N-benzoyl-β-alanine, other specific β-alanine derivatives, and salts thereof have a wrinkle-improving effect, whereby a wrinkle-improving agent containing as an active component one, two, or more types of compounds selected from the group composed of these specific β-alanine derivatives and the salts thereof was developed.