{"doi":"10.1021/acs.orglett.3c04014","title":"Accessing Medium-Sized Rings via Vinyl Carbocation Intermediates","abstract":"Medium-sized rings (8-11-membered cycles) are often more challenging to synthesize than smaller rings (5-7-membered cycles) due to ring strain. Herein, we report a catalytic method for forming 8- and 9-membered rings that proceeds via the intramolecular Friedel-Crafts reactions of vinyl carbocation intermediates. These reactive species are generated catalytically through the ionization of vinyl toluenesulfonates by a Lewis acidic lithium cation-weakly coordinating anion salt.","journal":"Organic Letters","year":2024,"id":452861,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":9,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.947,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2024-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1275067,"name":"Stasik Popov","orcid":"0000-0002-8870-0807","position":1,"is_corresponding":false},{"id":819143,"name":"Woojin Lee","orcid":"0000-0002-8531-0301","position":2,"is_corresponding":false},{"id":577800,"name":"Jessica E. Burch","orcid":"0000-0002-3578-1770","position":3,"is_corresponding":false},{"id":1048690,"name":"David A. Delgadillo","orcid":"0000-0002-0897-4470","position":4,"is_corresponding":false},{"id":589964,"name":"Lee Joon Kim","orcid":"0000-0002-0786-7614","position":5,"is_corresponding":false},{"id":942036,"name":"Mona Shahgholi","orcid":"0000-0002-8879-4305","position":6,"is_corresponding":false},{"id":1275454,"name":"Naiara Lebrón-Acosta","orcid":null,"position":7,"is_corresponding":false},{"id":292448,"name":"K. N. Houk","orcid":"0000-0002-8387-5261","position":8,"is_corresponding":false},{"id":492647,"name":"Hosea M. Nelson","orcid":"0000-0002-4666-2793","position":9,"is_corresponding":false},{"id":1275066,"name":"Zhenqi Zhao","orcid":"0009-0008-6420-8501","position":0,"is_corresponding":true}],"reference_count":26,"raw_metadata":null,"created_at":"2026-07-19T02:02:54.415477Z","pmid":"38295154","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}