Environmentally friendly hypervalent iodine reagents are unusually effective promoters of asymmetric α-functionalization of carbonyl compounds. By using hypervalent iodine reagents, various substituents can be introduced into the α-position of carbonyl compounds. In the present review, we briefly survey the asymmetric α-functionalization of carbonyl compound reactions catalyzed by these hypervalent iodine reagents.

Sulfenylation of C–H bonds for C–S bond formation under metal‐free conditions has become established as a powerful tool in organic chemistry. Various sulfenylation reagents such as thiols, disulfides, sulfinic acids, and so on have been employed for sulfenynlation reactions. In this review we mainly summarize the recent advances (2014 to the present) in this area and also discuss the mechanisms.

This review described recent advances in difluoroalkylation reaction using different substrates. Generally speaking, RCF2 radical was generally proposed in the mechanism of these reactions. At present, the most used difluoroalkylation...

Sodium sulfinates, sulfinic acids, sulfonyl chlorides and sulfonyl hydrazides as readily available and efficient sulfonylation reagents have been extensively explored in recent years. Sulfonyl radical can be generated from these sulfonyl reagents via different methods, then the sulfonyl radical could react with various substrates via different pathways to afford the corresponding products. In this review, we will summarize the progress in sulfonylation via radical reaction using sodium sulfinates, sulfinic acids, sulfonyl chlorides and sulfonyl hydrazides in recent three years. In terms of the different sulfonylation reagents, we classify these sulfonylation reactions into four types: 1.

No abstract

Phosphorus compounds are important compounds in many areas. This review briefly discusses copper-catalyzed C-P bond formation reactions. In the presence of copper catalyst, various C-P bond can be formed. C-P bond formation reactions are classified based on the different hybridization of the carbon which is connected with P atom. In addition, the challenges and opportunities of these reactions are also discussed.

No abstract

No abstract