Substitution reactions between arenethiolate anions and 1,3-dihalo-2,2-dimethylpropanes. Synthetic scope and mechanistic aspects
作者:Alicia Beatriz Peñéñory、Cecilia Andrea Barrionuevo、Juan Elias Argüello
DOI:10.3998/ark.5550190.0012.721
日期:——
The synthetic scope of the reactionsbetween benzenethiolate, 4-methoxybenzenethiolate, 2-naphthalenethiolate, and 2-pyridinethiolate anions with 1,3-dihalo-2,2-dimethylpropane was studied. These reactions render mono and disubstituted products from good to excellent yields. For all the substrates studied the monosubstituted halogenated product is the intermediate or the main product depending on the
The Reaction of (Arylthio)trimethylgermanes with Various Haloalkanes —Steric Effect on the Reaction Mechanism—
作者:Seizi Kozuka、Takemi Nitta
DOI:10.1246/bcsj.63.2843
日期:1990.10
conducted on the reactions of (arylthio)trimethylgermanes with various haloalkanes. Bimolecular nucleophilic attack of the sulfur atom has been found as the mechanisms for the reactions with normal haloalkanes while the mechanism was found to deviate from bimolecular attack to unimolecular ionization of the haloalkane, dependent on the structure of the alkyl groups with increasing of the steric hindrance
Probing Chiral Sulfoximine Auxiliaries in Ru(II)-Catalyzed One-Pot Asymmetric C–H Hydroarylation and Annulations with Alkynes
作者:Somratan Sau、Kallol Mukherjee、Koneti Kondalarao、Vincent Gandon、Akhila K. Sahoo
DOI:10.1021/acs.orglett.3c02969
日期:2023.10.27
herein is a chiral sulfoximine-enabled Ru(II)-catalyzed asymmetric C–H activation/functionalization involving intramolecular hydroarylation and functionalization/annulation of alkynes. This process constructs dihydrobenzofuran- or indoline-fused isoquinolinones having a tertiary or quaternary stereocenter with good yields and enantioselectivities (up to 97:3 enantiomeric ratio). The chiral sulfoxide