Iridium(III)-Catalyzed B(4)-Acylmethylation and B(3,5)-Diacylmethylation from o-Carboranes and Sulfoxonium Ylides.
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DOI: 10.1021/acs.orglett.2c00103
Abstract: An iridium(III)-catalyzed regioselective acylmethylation of the cage B(4)-H bond in o-carborane acids with sulfoxonium ylides is demonstrated through B(4)-H activation in ethanol under very mild conditions, affording a number of B(4)-acylmethylated o-carboranes. Additionally, the selective… read more here.
Keywords: iridium iii; catalyzed acylmethylation; sulfoxonium ylides; acylmethylation ... See more keywords
Rhodium(III)-Catalyzed Regioselective C3-H Acylmethylation of [2,2'-Bipyridine]-6-carboxamides with Sulfoxonium Ylides.
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DOI: 10.1021/acs.orglett.9b02253
Abstract: A rhodium(III)-catalyzed C-H acylmethylation of tridentate [2,2'-bipyridine]-6-carboxamides was developed. A variety of [2,2'-bipyridine]-6-carboxamides could be monoalkylated exclusively at the C3 position with sulfoxonium ylides as carbene precursors, giving 3-alkylated products in high yields. This protocol… read more here.
Keywords: bipyridine; acylmethylation; iii catalyzed; bipyridine carboxamides ... See more keywords
Rh(III)-Catalyzed Tandem Acylmethylation/Nitroso Migration/Cyclization of N-Nitrosoanilines with Sulfoxonium Ylides in One Pot: Approach to 3-Nitrosoindoles.
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DOI: 10.1021/acs.orglett.9b03768
Abstract: A novel synthesis of 3-nitrosoindoles starting from easily available N-nitrosoanilines and sulfoxonium ylides via Rh(III)-catalyzed acylmethylation and trifluoroacetic acid (TFA)-mediated nitroso transfer/cyclization cascade reaction in one pot has been developed. The N-nitroso group plays a… read more here.
Keywords: nitrosoanilines sulfoxonium; acylmethylation; iii catalyzed; sulfoxonium ylides ... See more keywords