Palladium-catalyzed selective ortho C–H alkoxylation at 4-aryl of 1, 4-disubstituted 1, 2, 3-triazoles
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DOI: 10.1016/j.tet.2020.130985
Abstract: Abstract The ortho- C–H bonds at C(4)-aryl of 1, 4-disubstituted 1, 2, 3-triazoles were regioselectively alkoxylated in good to excellent yields with under the directing of the triazole ring. Some products were found to exhibit… read more here.
Keywords: disubstituted triazoles; catalyzed selective; ortho alkoxylation; selective ortho ... See more keywords
Pd-Catalyzed Allylic Alkylation of gem-Alkyl,Aryl-Disubstituted Allyl Reagents with Ketones: Diastereoselective Construction of Vicinal Tertiary and Quaternary Carbon Centers
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DOI: 10.1021/acscatal.7b04313
Abstract: (E)-gem-Alkyl,aryl-disubstituted allyl carbonates can react with ketones under Pd catalysis using a commercially available NHC ligand by suppressing the β-H elimination. Ketones with α-tertiary, β-quaternary carbon stereocenters were produced in high yields with high regio-… read more here.
Keywords: aryl disubstituted; tertiary quaternary; disubstituted allyl; quaternary carbon ... See more keywords