Synthesis of 2-(Trifluoromethyl)indoles via Domino Trifluoromethylation/Cyclization of 2-Alkynylanilines
作者:Yibin Ye、Kelvin Pak Shing Cheung、Lisi He、Gavin Chit Tsui
DOI:10.1021/acs.orglett.8b00509
日期:2018.3.16
A new method for the synthesis of 2-(trifluoromethyl)indoles using easily accessible 2-alkynylanilines and a well-established fluoroform-derived CuCF3 reagent is described. This method utilizes a domino trifluoromethylation/cyclization strategy to construct the indole cores with no ambiguity of the CF3 position. The intriguing 3-formyl-2-(trifluoromethyl)indoles can also be synthesized by this protocol
Compounds of the formula I, in which X1, X2, X3, X4, X5, R1, R2, R3, R4, R5 and R6 have the meanings indicated in Claim
1
, are kinase inhibitors and can be employed, inter alia, for the treatment of tumours.
Compounds of the formula I, in which X1, X2, X3, X4, X5, R1, R2, R3, R4, R5 and R6 have the meanings indicated in Claim 1, are kinase inhibitors and can be employed, inter alia, for the treatment of tumors.