The rhodium-catalyzed olefination and deuteration of tetrahydrocarbazoles in water with the aid of an N,N-dimethylcarbamoyl-protected group is presented.
在水中,利用 N,N-二甲基羰基保护基辅助下,对四氢喹啉进行铑催化的烯烃化和氘化反应。
Palladium[ii] catalysed C(sp3)–H oxidation of dimethyl carbamoyl tetrahydrocarbazoles
作者:Yuji Nakano、David W. Lupton
DOI:10.1039/c3cc48545e
日期:——
Dimethyl carbamoyl tetrahydrocarbazoles undergo directed oxidation using standard conditions to exclusively provide products from C(sp3)âH oxidation. This result is in contrast to recent studies on the directed CâH olefination of hydrocarbazoles, which result in selective aromatic functionalisation.
Variation in site of lithiation with ring substituent of N ′-aryl-N,N-dimethylureas: application in synthesis
作者:Keith Smith、Gamal A. El-Hiti、Amba P. Shukla
DOI:10.1039/a903464a
日期:——
reagent of N′-(4-chlorophenyl)-N,N-dimethylurea with 2-chlorocyclohexanone gives an 82% isolated yield of 4a-hydroxy-N-(dimethylaminocarbonyl)-1,2,3,4,4a,9a-hexahydrocarbazole, which on treatment with trifluoroacetic acid affords N-(dimethylaminocarbonyl)-1,2,3,4-tetrahydrocarbazole in 97% yield. Double lithiation of N′-phenyl- and N′-(4-methylphenyl)-N,N-dimethylureas is achieved using tert-butyllithium