A copper-catalyzed regioselective C–H selenylation of quinolines with readily available diaryl diselenides is developed based on a chelation-controlled radical cross-coupling strategy. The reaction is scalable, tolerates a wide spectrum of functional groups, and proceeds with excellent C5 regioselectivity to deliver selenoquinolines in high yields (up to 98 %). A single electron transfer (SET) mediated
Rh-Catalyzed General Method for Directed C–H Functionalization via Decarbonylation of <i>in-Situ</i>-Generated Acid Fluorides from Carboxylic Acids
作者:Bangyue He、Xiaojie Liu、Hongyi Li、Xiaofeng Zhang、Yuxi Ren、Weiping Su
DOI:10.1021/acs.orglett.1c01103
日期:2021.6.4
decarbonylative C–H coupling of in-situ-generated acid fluorides with amide substrates bearing ortho-Csp2–H bonds has been developed. This method enables alkyl, aryl, and alkenyl carboxylicacids to undergo decarbonylative coupling with C–H bonds of (hetero)aromatic or alkenyl amides in generally good yields via the in situ conversion of carboxylicacids into acid fluorides and also allows for the functionalization
Palladium-Catalyzed Direct C–H Silylation and Germanylation of Benzamides and Carboxamides
作者:Kyalo Stephen Kanyiva、Yoichiro Kuninobu、Motomu Kanai
DOI:10.1021/ol500519y
日期:2014.4.4
A palladium-catalyzed regioselectiveactivation of C(sp2)–H and C(sp3)–H bonds of benzamides and carboxamides, followed by coupling with disilanes to afford organosilanes in moderate to high yields, with the aid of 8-aminoquinoline as a directinggroup, is reported. Catalytic C(sp2)–H germanylation of benzamides also proceeds under the same palladiumcatalysis. The reaction tolerates a wide variety
A facile method for Rh-catalyzed decarbonylative <i>ortho</i>-C–H alkylation of (hetero)arenes with alkyl carboxylic acids
作者:Yiqiang Tian、Xiaojie Liu、Bangyue He、Yuxi Ren、Weiping Su
DOI:10.1039/d1ra03992j
日期:——
facile and effectivemethod for Rh-catalyzed direct ortho-alkylation of C–H bonds in (hetero)arenes with commercially available carboxylic acids has been developed. This strategy was initiated by in situ conversion of carboxylic acids to anhydrides which, without isolation, underwent Rh-catalyzed direct decarbonylative cross-coupling of aryl carboxamides containing 8-aminoquinoline. The reaction proceeds
Rh-Catalyzed, Regioselective, C–H Bond Functionalization: Access to Quinoline-Branched Amines and Dimers
作者:M. Damoder Reddy、Frank R. Fronczek、E. Blake Watkins
DOI:10.1021/acs.orglett.6b02848
日期:2016.11.4
Rh-catalyzed, chelation-induced, C-5 regioselectiveC–Hfunctionalization of 8-amidoquinolines with a range of N-Boc aminals is reported for the first time. The addition of in situ generated imines to C(sp2)–H bonds afforded branched amines in good to excellent yields. Moreover, this transformation features good functional group compatibility, broad substrate scope, and mild reaction conditions and