Electrochemically Induced Synthesis of Sulfonylated <i>N</i>-Unsubstituted Enamines from Vinyl Azides and Sulfonyl Hydrazides
作者:Olga M. Mulina、Nataliya V. Zhironkina、Stanislav A. Paveliev、Dmitry V. Demchuk、Alexander O. Terent’ev
DOI:10.1021/acs.orglett.0c00139
日期:2020.3.6
Sulfonylated N-unsubstituted enamines were synthesized through a chain of chemical and electrochemical transformations via sulfonylation of vinyl azides. The disclosing of the N-unsubstituted enaminessynthesis was based on a unique property of the azido group, which is its ability to eliminate the N2 molecule. Furthermore, a formal paradox is observed: a double bond reacts and a double bond is retained
Photoredox-catalyzed synthesis of N-unsubstituted enaminosulfones from vinyl azides and sulfinates
作者:Olga M. Mulina、Alexey I. Ilovaisky、Till Opatz、Alexander O. Terent'ev
DOI:10.1016/j.tetlet.2020.152737
日期:2021.2
A metal-free visible light photoredox-catalyzed synthesis of N-unsubstituted enaminosulfones from vinylazides and sodium sulfinates in moderate to high yields is described. The reaction proceeds in ethanol and uses eosin Y as a readily available photocatalyst in combination with nitrobenzene as an electron shuttle. Taking into account the number of steps involved (generation of the sulfonyl radical
Rhodium(I)-Catalyzed Addition of Arylboronic Acids to (Benzyl-/Arylsulfonyl)acetonitriles: Efficient Synthesis of (<i>Z</i>)-β-Sulfonylvinylamines and β-Keto Sulfones
An efficient rhodium(I)-catalyzed addition of arylboronic acids to (benzyl-/arylsulfonyl)acetonitrile is described. Novel β-sulfonylvinylamine products are formed in a stereoselective fashion (Z-alkene). Upon hydrolysis, useful β-keto sulfones are obtained with a broad scope of aryl and sulfonyl substituents.
[EN] ORGANIC COMPOUND AND APPLICATION, AND ORGANIC ELECTROLUMINESCENCE DEVICE USING ORGANIC COMPOUND<br/>[FR] COMPOSÉ ORGANIQUE ET SON APPLICATION, ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE UTILISANT LE COMPOSÉ ORGANIQUE<br/>[ZH] 一种有机化合物和应用以及使用其的有机电致发光器件
Rhodium-Catalyzed Asymmetric Hydrogenation of β-Acetylamino Acrylosulfones: A Practical Approach to Chiral β-Amido Sulfones
作者:Jun Jiang、Yan Wang、Xumu Zhang
DOI:10.1021/cs500261k
日期:2014.5.2
The efficient and highly enantioselective catalytic asymmetric hydrogenation of beta-acetylamino acrylosulfone has been achieved by employing Rhodium-TangPhos as catalyst. A series of beta-amido sulfone products are obtained with excellent yields and good enantioselectivities.