Cobalt-Hydride-Catalyzed Hydrosilylation of 3-Alkynes Accompanying π-Bond Migration
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DOI: 10.1021/acscatal.0c05424
Abstract: We describe a protocol for cobalt-catalyzed hydrosilylation of 3-alkynes with accompanying π-bond migration. Mechanistic studies indicate that (i) cobalt(I)-hydride bearing a bulky bisphosphine lig... read more here.
Keywords: alkynes accompanying; hydrosilylation alkynes; catalyzed hydrosilylation; bond migration ... See more keywords
Synthesis of Dihydropyrano[3,2-c]pyrazoles via Double Bond Migration and Ring-Closing Metathesis
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DOI: 10.3390/molecules24020296
Abstract: Three types of pyrazole-fused heterobicycles, i.e., 1,5-, 1,7-, and 2,5-dihydropyrano[3,2-c]pyrazoles, were synthesized from 4-allyloxy-1H-pyrazoles. A sequence of the Claisen rearrangement of 4-allyloxy-1H-pyrazoles, ruthenium-hydride-catalyzed double bond migration, O-allylation, and ring-closing metathesis was employed in this study. read more here.
Keywords: dihydropyrano pyrazoles; closing metathesis; bond migration; double bond ... See more keywords