novel method for the ortho alkylation of acetanilide and aromatic urea derivativesvia C–H activation was developed. Alkyl dibenzothiophenium salts are considered to be new reagents for the palladium-catalyzed C–H activation reaction, which enables the transfer of methyl and other alkyl groupsfrom the sulfonium salt to the aniline derivatives under mild catalytic conditions.
A novel Selectfluor-mediated copper-catalyzed highly selective benzylic C–O cyclization for the synthesis 4H-3,1-benzoxazines is reported. The predominant selectivity for a benzylic C(sp3)–H over an aromatic C(sp2)–H bond in N-o-tolylbenzamides is achieved.
报道了一种新颖的Selectfluor介导的铜催化的高选择性苄基C–O环化反应,用于合成4 H -3,1-苯并恶嗪。在N - o-甲苯基苯甲酰胺中,相对于芳族C(sp 2)-H键,苄基C(sp 3)-H具有主要的选择性。
Aryl C-N bond formation by electrophilic amination of diarylcadmium reagents with<i>O</i>-substituted ketoximes
作者:Tahir Daşkapan、Adem Korkmaz
DOI:10.1080/00397911.2016.1177729
日期:2016.5.2
under milder reaction conditions and they form corresponding arylamines in higher yields. CuCN cannot help dialkyl-, dicycloalky-, and dibenzylcadmium reagents to react with ketoxime. Our Aryl C-N bondformation method does not include cadmium excretion into the environment. GRAPHICAL ABSTRACT
Synthesis of amides through an oxidative amidation of tetrazoles with aldehydes under transition-metal-free conditions
作者:Juan Du、Kai Luo、Xiuli Zhang
DOI:10.1039/c4ra07658c
日期:——
A simple, inexpensive and efficient one-pot synthesis of amides was achieved in good yields via the direct oxidativeamidation of tetrazoles with aldehydes under transition-metal-free conditions.
[EN] BENZOYLPHENYL-FORMAMIDINES HAVING A FUNGICIDAL ACTIVITY, THEIR AGRONOMIC COMPOSITIONS AND RELATIVE USE<br/>[FR] BENZOYLPHÉNYL-FORMAMIDINES AYANT UNE ACTIVITÉ FONGICIDE, LEURS COMPOSITIONS AGRONOMIQUES ET LEUR UTILISATION
申请人:ISAGRO SPA
公开号:WO2015121802A1
公开(公告)日:2015-08-20
New benzoylphenyl-formamidines having general formula (I): (I) fungicidal compositions containing them, and their use for the control of phytopathogenic fungi of agricultural crops, are described.