{"doi":"10.1002/ange.202215856","title":"Photochemical Decarbonylation of Oxetanone and Azetidinone: Spectroscopy, Computational Models, and Synthetic Applications**","abstract":"Abstract Photoexcitation of cyclic ketones leads to the expulsion of carbon monoxide and a mixture of products derived from diradical intermediates. Here we show that synthetic utility of this process is improved if strained heterocyclic ketones are used. Photochemistry of 3‐oxetanone and N ‐Boc‐3‐azetidinone has not been previously described. Decarbonylation of these 4‐membered rings proceeds through a step‐wise Norrish type I cleavage of the C−C bond from the singlet excited state. Ylides derived from both compounds are high‐energy species that are kinetically stable long enough to undergo [3+2] cycloaddition with a variety of alkenes and produce substituted tetrahydrofurans and pyrrolidines. The reaction has a sufficiently wide scope to produce scaffolds that were either previously inaccessible or difficult to synthesize, thereby providing experimental access to new chemical space.","journal":"Angewandte Chemie","year":2022,"id":296088,"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":1,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9463,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2022-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":950379,"name":"Pawan S. Dhote","orcid":"0000-0002-1073-6236","position":1,"is_corresponding":false},{"id":74738,"name":"Daniel Johnson","orcid":"0000-0002-0311-2513","position":2,"is_corresponding":false},{"id":950826,"name":"Samuel Figueroa‐Lazú","orcid":null,"position":3,"is_corresponding":false},{"id":832909,"name":"Christopher G. Elles","orcid":"0000-0002-1408-8360","position":4,"is_corresponding":false},{"id":476596,"name":"Žarko Bošković","orcid":"0000-0001-9376-527X","position":5,"is_corresponding":false},{"id":798368,"name":"Manvendra Singh","orcid":"0000-0002-9292-5574","position":0,"is_corresponding":true}],"reference_count":33,"raw_metadata":null,"created_at":"2026-07-19T00:31:12.531553Z","pmid":null,"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":[]}