81069-40-1Relevant articles and documents
Trans-cinnamic acid ester compound and its synthetic method and application
-
Paragraph 0071; 0072, (2016/10/07)
The invention relates to a trans cinnamic acid ester compound, as well as a synthetic method and application thereof. At present, a typic miticide has the growing problems, such as drug resistance and environment and ecology, so that a new animal miticide needs to be developed very urgently. The trans cinnamic acid ester compound has the molecular structure shown in the specification, wherein R refers to alkyl radical, R1 and R2 refer to hydrogen, hydroxide radical, alkyl radical, alkoxy, fatty acyloxy, halogen, methylenedioxy or nitro, and are the same or different; the trans cinnamic acid ester compound can be used for preparing miticides for animals and people. The compound serves as a novel miticide, is relatively low in toxicity, small in molecular weight, few in synthetic steps, simple to operate, low in production cost, and suitable for large-scale industrial production; the acaricidal activity is remarkably stronger that of a miticide applied in current all clinics.
A general model for selectivity in olefin cross metathesis
Chatterjee, Arnab K.,Choi, Tae-Lim,Sanders, Daniel P.,Grubbs, Robert H.
, p. 11360 - 11370 (2007/10/03)
In recent years, olefin cross metathesis (CM) has emerged as a powerful and convenient synthetic technique in organic chemistry; however, as a general synthetic method, CM has been limited by the lack of predictability in product selectivity and stereoselectivity. Investigations into olefin cross metathesis with several classes of olefins, including substituted and functionalized styrenes, secondary allylic alcohols, tertiary allylic alcohols, and olefins with α-quaternary centers, have led to a general model useful for the prediction of product selectivity and stereoselectivity in cross metathesis. As a general ranking of olefin reactivity in CM, olefins can be categorized by their relative abilities to undergo homodimerization via cross metathesis and the susceptibility of their homodimers toward secondary metathesis reactions. When an olefin of high reactivity is reacted with an olefin of lower reactivity (sterically bulky, electron-deficient, etc.), selective cross metathesis can be achieved using feedstock stoichiometries as low as 1:1. By employing a metathesis catalyst with the appropriate activity, selective cross metathesis reactions can be achieved with a wide variety of electron-rich, electron-deficient, and sterically bulky olefins. Application of this model has allowed for the prediction and development of selective cross metathesis reactions, culminating in unprecedented three-component intermolecular cross metathesis reactions.
Process for the preparation of alkenylbenzenecarboxylic acid derivatives and alkenylnaphthalenecarboxylic acid derivatives
-
, (2008/06/13)
Compounds of the formula I STR1 in which p, m, Z, R, R' and Y are as defined in claim 1, can be obtained in a simple and economical manner by a novel process which comprises reacting a halide of the formula STR2 with the corresponding acrylic acid derivative, in the presence of a base and of certain palladium catalysts, such as palladium acetate. The compounds (I), and functional derivatives prepared therefrom, are useful for the preparation of photocrosslinkable polymers, which can in particular be employed as (so-called) photoresists.