JOVANOVIC M. V., HETEROCYCLES, 24,(1986) N 3, 951-966
作者:JOVANOVIC M. V.
DOI:——
日期:——
Stereoselective intramolecular radical addition of polyhaloacyl pendant groups to the 1,3-dihydro-2-imidazolone moiety: the chiral synthesis of threo-diaminocarboxylic acids
addition of trichloroacetyl and 2,2-dichloro-4-hexenoyl pendant groups to a 1,3-dihydro-2-imidazolone moiety provides a perfectly stereocontrolled approach to the preparation of 1,2-diamines which contain contiguous multi-stereocenters. Typical examples for this approach are given by the chiral synthesis of vicinal-diaminocarboxylic acids, which are amino analogs of statine and MeBmt.
Rh(III)-Catalyzed C–H Activation/Annulation of Benzohydroxamates and 2-Imidazolones: Access to Urea-Fused-Dihydroisoquinolone Scaffolds Reminiscent of Pyrrole Alkaloid Natural Products
作者:Grace E. Hubbell、Jetze J. Tepe
DOI:10.1021/acs.orglett.2c02508
日期:2022.9.23
A Rh(III)-catalyzed C–H activation/annulation with an imidazolone as alkene partner is reported to access dihydroisoquinolone-fused imidazolin-2-ones. These bicycles are reminiscent of scaffolds belonging to the pyrrole alkaloid family of natural products. This approach facilitates construction of a variety of urea-fused dihydroisoquinolone scaffolds including heterocyclic moieties.