75199-81-4Relevant academic research and scientific papers
Access to substituted trifluoromethyl ketones using the versatile synthetic intermediate (E)-1,1-dimethyl-2-(1,1,1-trifluoropropan-2-ylidene)hydrazine
Judd, Ted C.,Brown, Derek B.
supporting information, p. 4455 - 4458 (2017/10/30)
The N,N-dimethylhydrazone of 1,1,1-trifluoroacetone, (E)-1,1-dimethyl-2-(1,1,1-trifluoropropan-2-ylidene)hydrazine, has been shown to undergo a diverse set of reactions following deprotonation with n-butyl-lithium; including alkylation, addition to ketones and aldehydes, as well as palladium-catalyzed cross-couplings with aryl bromides. Mild hydrolysis of the N,N-dimethylhydrazone products from these transformations affords the corresponding trifluoromethyl ketones in good to excellent yields.
Highly efficient synthesis of chiral α-CF3 amines via Rh-catalyzed asymmetric hydrogenation
Jiang, Jun,Lu, Wenxin,Lv, Hui,Zhang, Xumu
supporting information, p. 1154 - 1156 (2015/03/14)
Highly enantioselective catalytic asymmetric hydrogenation of α-CF3-enamides has been achieved by employing rhodium-DuanPhos as the catalyst, which provides a readily accessible method for the synthesis of chiral trifluoromethylated amines. The reaction has a broad substrate scope; both aryl- and alkyl-substituted α-CF3-enamides worked smoothly and afford the corresponding chiral amines in high yields and excellent enantioselectivities (up to 99% ee).
