1,2-Benzothiazines from Sulfoximines and Allyl Methyl Carbonate by Rhodium-Catalyzed Cross-Coupling and Oxidative Cyclization.
4-Unsubstituted 1,2-benzothiazines are prepared from sulfoximines and allyl methyl carbonate by Rh(III)-catalyzed domino allylation/oxidative cyclization. A wide range of functional groups on the sulfoximine are tolerated. A plausible mechanism is proposed, and chemical modifications of the products have been explored.
Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, D-52074 Aachen, Germany.
Jian
J
Wen
Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, D-52074 Aachen, Germany.
Deo Prakash
DP
Tiwari
Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, D-52074 Aachen, Germany.
Carsten
0000-0001-9415-9917
C
Bolm