The invention relates to compound of the formula (I), in which the substituents are as defined in the specification; in free form or in salt form; to its preparation, to its use as medicament and to medicaments comprising it.
The invention relates to compound of the formula (I), in which the substituents are as defined in the specification; in free form or in salt form; to its preparation, to its use as medicament and to medicaments comprising it.
Rhodium(II)-Catalyzed Hinsberg Dearomatization Using Trimethylsilyldiazomethane
作者:Jason R. Combs、David S. Carter、Fengyi Gu、Xiaokang Jin、Connor M. Martin、Elizabeth S. Resendiz、David L. Van Vranken
DOI:10.1021/acs.orglett.3c03130
日期:2023.11.17
Rhodium(II) catalyzes carbene transfer from trimethylsilyldiazomethane to arylmethyl thioethers, generating sulfonium ylides that undergo [2,3]-sigmatropic rearrangement, punching quaternary centers into aromatic rings. The reaction works well with naphthalene, indole, and benzofuran ring systems, but the reaction is unsuccessful with the monocyclic benzene homologue. For aryl thioethers, Rh2(OAc)4