Trifluoromethylthiolation of α-Chloroaldehydes: Access to Quaternary SCF<sub>3</sub>
-Containing Centers
作者:Fabien Gelat、Thomas Poisson、Akkattu T. Biju、Xavier Pannecoucke、Tatiana Besset
DOI:10.1002/ejoc.201800418
日期:2018.8.1
Munavalli reagent as the electrophilic SCF3 source, a base-catalyzed trifluoromethylthiolation reaction with a panel of -chloroaldehydes was successfully achieved under mild reaction conditions. The -trifluoromethylthiolated chloroaldehydes were obtained in moderate to high yields (up to 88%). This approach demonstrated a good functional-group tolerance and offered access to highly functionalized quaternary
N-Heterocyclic Carbene-Catalyzed Synthesis of α-Trifluoromethyl Esters
作者:Fabien Gelat、Atanu Patra、Xavier Pannecoucke、Akkattu T. Biju、Thomas Poisson、Tatiana Besset
DOI:10.1021/acs.orglett.8b01482
日期:2018.7.6
The N-heterocyclic carbene (NHC)-catalyzed trifluoromethylation of alpha-chloro aldehydes was developed, allowing straightforward access to valuable alpha-trifluoromethyl ester derivatives. The unique combination of an electrophilic trifluoromethylation reagent with NHC catalysis was the key for the functionalization of a broad range of alpha-chloro aldehydes, and the products are formed in moderate to good yields. Investigations of the enantioselective version of this reaction afforded the enantioenriched products in moderate yields with good ee values.
Tsay, Shwu-Chen; Robl, Jeffrey A.; Hwu, Jih Ru, Journal of the Chemical Society. Perkin transactions I, 1990, p. 757 - 759
作者:Tsay, Shwu-Chen、Robl, Jeffrey A.、Hwu, Jih Ru
DOI:——
日期:——
TSAY, SHWU-CHEN;ROBL, JEFFREY A.;HWU, JIH RU, J. CHEM. SOC. PERKIN TRANS. PT 1,(1990) N, C. 757-759