Gadolinium Photocatalysis: Dearomative [2+2] Cycloaddition/Ring‐Expansion Sequence with Indoles
作者:Jiajia Ma、Felix Schäfers、Constantin Daniliuc、Klaus Bergander、Cristian A. Strassert、Frank Glorius
DOI:10.1002/anie.202001200
日期:2020.6.8
photocatalysis of a highlyregioselective, intermolecular [2+2] photocycloaddition/ring‐expansion sequence with indoles, which could provide divergent access to cyclopenta[b ]indoles and indolines. A simple and commercially available Gd(OTf)3 salt is sufficient for this visible‐violet‐light‐induced transformation. The reaction proceeds either through a transient or start‐to‐end dearomatization cascade and
The present invention relates to N-cycloalkyl-N-bicyclicmethylene-carboxamide or thiocarboxamide derivatives, their process of preparation, preparation of intermediate compounds, their use as fungicide active agents, particularly in the form of fungicide compositions, and methods for the control of phytopathogenic fungi, notably of plants, using these compounds or compositions.
An efficient catalytic asymmetric [2+2] cycloadditionreaction of allenyl imide and alkenes was achieved by utilizing chiral N,N′-dioxide-magnesium(II) complex as the catalyst. This protocol provided a series of axially chiral cyclobutenes in high yields with excellent enantioselectivities. A stepwise mechanism was proposed based on experimental studies and DFT calculations and π–π stacking interaction
[EN] FUNGICIDE N-CYCLOALKYL-N-BICYCLICMETHYLENE-CARBOXAMIDE DERIVATIVES<br/>[FR] DÉRIVÉS FONGICIDES DE N-CYCLOALKYL-N-MÉTHYLÈNEBICYCLIQUE-CARBOXAMIDE
申请人:BAYER IP GMBH
公开号:WO2013144086A1
公开(公告)日:2013-10-03
The present invention relates to N-cycloalkyl-N-bicyclicmethylene-carboxamide or thiocarboxamide derivatives, their process of preparation, preparation of intermediate compounds, their use as fungicide active agents, particularly in the form of fungicide compositions, and methods for the control of phytopathogenic fungi, notably of plants, using these compounds or compositions.