Visible-Light-Driven Halogen-Bond-Assisted Direct Synthesis of Heteroaryl Thioethers Using Transition-Metal-Free One-Pot C–I Bond Formation/C–S Cross-Coupling Reaction
involves two sequential reactions in a single pot where the formation of the iodinated heteroarene is followed by a transition-metal-free C–S coupling reaction. A wide range of heteroarene and thiol partners (including aliphatic thiols) have been used for the synthesis of thioethers. NMR studies and DFT calculations revealed the presence of a halogen bond between the thiolateanion (halogen bond acceptor)
Highly atom-economical, catalyst-free, and solvent-free phosphorylation of chalcogenides
作者:Rakhee Choudhary、Pratibha Singh、Rekha Bai、Mahesh C. Sharma、Satpal Singh Badsara
DOI:10.1039/c9ob01921a
日期:——
Silica gel promoted, catalyst-free and solvent-free S–P, Se–P and Te–P bond formations to obtain phosphinothioates, phosphoroselenoates, and phosphorotelluroates respectively in good to excellent yields are described.
Photoredox Catalyzed Thioformylation of Terminal Alkynes Using Nitromethane as a Formyl Source
作者:Muneer-ul-Shafi Bhat、Majid Ahmad Ganie、Masood Ahmad Rizvi、Shabnam Raheem、Bhahwal Ali Shah
DOI:10.1021/acs.orglett.2c02695
日期:2022.9.16
A photoredox thioformylation of terminal alkynes using nitromethane as a formyl anion equivalent, thereby leading to the synthesis of (E)-1,2-difunctionalized acrylaldehyde, has been described. The current strategy introduces an adaptable aldehyde function across an alkyne and offers a new route to synthesizing α-alkyl/aryl aldehydes.
已经描述了使用硝基甲烷作为甲酰基阴离子等价物的末端炔烃的光氧化还原硫甲酰化,从而导致合成 ( E )-1,2-双官能化丙烯醛。目前的策略在炔烃中引入了一种适应性的醛功能,并为合成 α-烷基/芳基醛提供了一条新途径。
Selective Synthesis of Sulfonamides and Sulfenamides from Sodium Sulfinates and Amines
An effective method was explored for the selective synthesis of sulfonamides and sulfenamides using sodium sulfinates and amines as starting materials. This method offers mild reaction conditions, a broad substrate scope, high efficiency, and readily accessible materials, making it suitable and an alternative strategy for the preparation of a variety of biologically or pharmaceutically active compounds