Catalytic Thia-Sommelet−Hauser Rearrangement: Application to the Synthesis of Oxindoles
摘要:
A series of 3-arylthio-1,3-disubstituted-oxindoles were prepared in good yields by the reaction of alpha-diazocarbonyl compounds and sulfenamides. The reaction involves a Rh-catalyzed thia-Sommelet-Hauser-type rearrangement.
Lewis Acid Catalyzed Ring-Opening 1,3-Aminothiolation of Donor–Acceptor Cyclopropanes Using Sulfenamides
作者:Avishek Guin、Thukaram Rathod、Rahul N. Gaykar、Tony Roy、Akkattu T. Biju
DOI:10.1021/acs.orglett.0c00483
日期:2020.3.20
donor-acceptor (D-A) cyclopropanes using sulfenamides has been demonstrated. The insertion of the C-C σ-bond of D-A cyclopropanes into the S-N σ-bond of sulfenamides allows the synthesis of diverse γ-aminated α-thiolated malonic diesters in moderate to good yields (up to 87%) with good functional group compatibility. The stereospecificity of the reaction was demonstrated using enantiomericallypure D-A cyclopropane