[EN] INTRODUCTION OF ALKYL SUBSTITUENTS TO AROMATIC COMPOUNDS<br/>[FR] INTRODUCTION DE SUBSTITUANTS ALKYLE DANS DES COMPOSÉS AROMATIQUES
申请人:B G NEGEV TECH AND APPLICATIONS LTD AT BEN-GURION UNIV
公开号:WO2016132355A1
公开(公告)日:2016-08-25
Novel selective synthesis route to introduce primary alkyl groups on aromatic compounds is disclosed. The synthesis route is based on electrophilic aromatic substitutions of thionium ion species that are generated in-situ from aldehydes and thiols, affording benzyl sulfide that can be reduced with triethylsilane.
Introduction of alkyl substituents to aromatic compounds
申请人:B. G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY
公开号:US10351492B2
公开(公告)日:2019-07-16
Novel selective synthesis route to introduce primary alkyl groups on aromatic compounds is disclosed. The synthesis route is based on electrophilic aromatic substitutions of thionium ion species that are generated in-situ from aldehydes and thiols, affording benzyl sulfide that can be reduced with triethylsilane.
INTRODUCTION OF ALKYL SUBSTITUENTS TO AROMATIC COMPOUNDS
申请人:B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY
公开号:US20180065904A1
公开(公告)日:2018-03-08
Novel selective synthesis route to introduce primary alkyl groups on aromatic compounds is disclosed. The synthesis route is based on electrophilic aromatic substitutions of thionium ion species that are generated in-situ from aldehydes and thiols, affording benzyl sulfide that can be reduced with triethylsilane.
New three-component condensation reaction: synthesis of 1-[(alkylthio)(phenyl)methyl]-naphthalene-2-ol catalyzed by bromodimethylsulfonium bromide (BDMS)
作者:Abu T. Khan、Shahzad Ali、Ajaz A. Dar、Mohan Lal
DOI:10.1016/j.tetlet.2011.07.113
日期:2011.10
Bromodimethylsulfoniumbromide acts as an efficient catalyst for one pot three component condensation reactions of aldehydes, 2-naphthol, and thiols in acetonitrile at room temperature. Various aliphatic and aromatic thiols undergo conjugate addition with in situ generated enone in acetonitrile and provide good yields. The main features of this procedure are mild reaction conditions, good yields, and
A direct approach for the expedient synthesis of unsymmetrical ethers by employing bromodimethylsulfonium bromide (BDMS) mediated C–S bond cleavage of naphthalene-2-ol sulfides
作者:Kobirul Islam、R. Sidick Basha、Ajaz A. Dar、Deb K. Das、Abu T. Khan
DOI:10.1039/c5ra14563e
日期:——
unsymmetrical ether derivatives1-(alkoxy(aryl)methyl)naphthalen-2-ols (3a–q) were synthesized from 1-(aryl(alkyl/arylthio)methyl)-naphthalene-2-ol derivatives (1) and alcohols (2) by cleavage of C–S bond using bromodimethylsulfonium bromide (BDMS) at room temperature. Moreover, 1-(hydroxy(aryl)methyl)naphthalen-2-ol derivatives (7a–d) were also synthesized from the corresponding sulfide derivatives (1) on reaction