The quantitative indices for the ability of leaving groups to depart from C atoms are pK(lg)(Me). In the cases of methyl transfers from arenesulfonates, these parameters have correlated a large number of nucleophilic data. A new scale of these parameters has been defined from methyl transfer data between phenylmethyl thioethers. The pK(lg)(Me) data from both sets of compounds correlated with both experimental E(1/2) values and E(LUMO) values from computational chemistry. These correlations support the SCM model of Shaik et al. which requires the leaving group to display some SET character in an S(N)2 transition state.
[EN] SUBSTITUTED QUINAZOLINES AS FUNGICIDES<br/>[FR] QUINAZOLINES SUBSTITUÉES, UTILISÉES EN TANT QUE FONGICIDES
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2010136475A1
公开(公告)日:2010-12-02
The present invention relates to a compound of formula (I) wherein wherein the substituents have the definitions as defined in claim 1or a salt or a N-oxide thereof, their use and methods for the control and/or prevention of microbial infection, particularly fungal infection, in plants and to processes for the preparation of these compounds.
Pd‐Catalyzed Intermolecular Transthiolation of Ar‐OTf Using Methyl 3‐(Methylthio) Propanoate as a Thiol Surrogate
作者:Dandan Pan、Shasha Xu、Qingqiang Tian、Yahui Li
DOI:10.1002/ejoc.202100822
日期:2021.9.7
The work describes an intermoleculartransthiolation of Ar−OTf usingmethyl 3-(alkyllthio) propanoate as an odourless thiolsurrogate. A series of substituted aryl methyl sulfides have been obtained in moderate to good yields.
Highly atom-economic, catalyst- and solvent-free oxidation of sulfides into sulfones using 30% aqueous H2O2
作者:Marjan Jereb
DOI:10.1039/c2gc36073j
日期:——
Highly atom-efficient oxidation of sulfides into sulfones under solvent- and catalyst-free reaction conditions using a 30% aqueous solution of H2O2 at 75 °C is reported. A structurally diverse set of phenyl alkyl-, phenyl benzyl-, benzyl alkyl-, dialkyl-, heteroaryl alkyl- and cyclic sulfides were transformed into sulfones regardless of the aggregate state and electronic nature of the substituents
The present invention relates to compounds that are inhibitors of c-jun N-terminal kinase 1, 2, or 3 (JNK1, JNK2, or JNK3), compositions containing the compounds and the use of the compounds in the prevention or treatment of disorders regulated by the activation of JNK1, JNK2 and JNK3.
The present invention relates to a compound of formula (I) wherein the substituents have the definitions as defined in claim
1
or a salt or a N-oxide thereof, their use and methods for the control and/or prevention of microbial infection, particularly fungal infection, in plants and to processes for the preparation of these compounds.