86561-27-5Relevant articles and documents
Study of the Rh2(OAc)4- or BF3·OEt2-mediated reaction of thioacetic S-acid with α-diazocarbonyl compounds
Yao, Wengang,Liao, Mingyi,Zhang, Xiaomei,Xu, Hao,Wang, Jianbo
, p. 1784 - 1788 (2003)
The Rh2(OAc)4-catalyzed reaction of methyl aryldiazo-acetates with thioacetic S-acid gives exclusively the S-H insertion products in high yields, while the corresponding reaction mediated by BF3·OEt2 gives O-est
Well-Defined, Versatile and Recyclable Half-Sandwich Nickelacarborane Catalyst for Selective Carbene-Transfer Reactions
Wang, Linghua,Perveen, Saima,Ouyang, Yizhao,Zhang, Shuai,Jiao, Jiao,He, Gang,Nie, Yong,Li, Pengfei
supporting information, p. 5754 - 5760 (2021/03/08)
Catalytic carbene-transfer reactions constitute a class of highly useful transformations in organic synthesis. Although catalysts based on a range of transition-metals have been reported, the readily accessible nickel(II)-based complexes have been rarely used. Herein, an air-stable nickel(II)-carborane complex is reported as a well-defined, versatile and recyclable catalyst for selective carbene transfer reactions with low catalyst loading under mild conditions. This catalyst is effective for several types of reactions including diastereoselective cyclopropanation, epoxidation, selective X?H insertions (X = C, N, O, S, Si), particularly for the unprotected substrates. This represents a rare example of carborane ligands in base metal catalysis.
Making Carbonyls of Amides Nucleophilic and Hydroxyls of Alcohols Electrophilic Mediated by SO2F2 for Synthesis of Esters from Amides
Fang, Wan-Yin,Zha, Gao-Feng,Qin, Hua-Li
supporting information, p. 8657 - 8661 (2019/10/17)
We discovered that with the promotion of sulfuryl fluoride, the carbonyl groups of amides performed as nucleophiles while the hydroxyl groups of alcohols were activated to functionalize as electrophiles. This study displayed that the amide C-N bonds could be easily cleaved with delicate nucleophiles to form the ester C-O bonds at room temperature without using transition metals. The broad substrate scope and excellent functional group compatibility were proved with 44 examples in up to 99% yields.
