{"corpus_id":52034913,"paper_sha":"a8b876db15da754e060b4e4f8b650b6967b493ac","doi":"10.1039/C7QO00250E","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2607683231,"dblp_id":null,"acl_id":null,"title":"Pincer cobalt complex-catalyzed Z-selective hydrosilylation of terminal alkynes","year":2017,"publication_date":"2017-07-26","venue":"","journal":{"name":"Organic chemistry frontiers","pages":"1517-1521","volume":"4"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Chemistry"],"reference_count":75,"citation_count":24,"influential_citation_count":1,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":"https://pubs.rsc.org/en/content/articlepdf/2017/qo/c7qo00250e","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/a8b876db15da754e060b4e4f8b650b6967b493ac","s2_open_access_license":"CCBYNC","s2_open_access_status":"HYBRID","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"A phosphine-iminopyridine (PCNN) cobalt-catalyzed Z-selective hydrosilylation of terminal alkynes with Ph2SiH2 has been developed for the synthesis of (Z)-β-vinylsilanes with high regio- and stereoselectivity and wide functional group tolerance. Furthermore, the Co-catalyzed hydrosilylations of unsymmetrical arylalkyl disubstituted internal alkynes afford syn-addition products with unique regioselectivity: the silyl group is added to the alkyl-substituted carbon, instead of the aryl-substituted carbon. The (Z)-β-vinylsilane products are further applied to Pd-catalyzed Hiyama–Denmark cross-couplings for stereoselective synthesis of (Z)-disubstituted alkenes.","claims":[{"public_id":"cl_b81b45bd479f1373d2c0dcdd61058a86","status":"active","text":"(Z)-β-vinylsilane products can be used in Pd-catalyzed Hiyama–Denmark cross-couplings to stereoselectively synthesize (Z)-disubstituted alkenes.","confidence":0.96,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_b81b45bd479f1373d2c0dcdd61058a86"},{"public_id":"cl_4b7510dd9fd942d5a2be5d564bdfe3d4","status":"active","text":"A phosphine-iminopyridine cobalt catalyst enables Z-selective hydrosilylation of terminal alkynes with Ph2SiH2 to form (Z)-β-vinylsilanes with high regio- and stereoselectivity and wide functional group 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