{"id":"W2950859432","doi":"10.1002/chin.201327123","title":"ChemInform Abstract: A Hetero Diels—Alder Approach to the Synthesis of Chromans (3,4‐Dihydrobenzopyrans) Using Oxonium Ion Chemistry: The Oxa‐Povarov Reaction.","year":2013,"lang":"en","type":"article","venue":"ChemInform","topic":"Synthesis of Indole Derivatives","field":"Chemistry","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"","keywords":"Oxonium ion; Chemistry; Oxocarbenium; Cycloaddition; Cationic polymerization; Ion; Aryl; In situ; Organic chemistry; Medicinal chemistry; Catalysis; Alkyl","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001270224,0.0004215381,0.0001232868,0.0005448036,0.000306354,0.0005042746,0.0003665132,0.0002529021,0.007833447],"category_scores_gemma":[0.00008596785,0.0002339261,0.0001415348,0.0002654871,0.0001858669,0.0003213045,0.0003731987,0.0005841795,0.002538678],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000453346,"about_ca_system_score_gemma":0.0006062014,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004263275,"about_ca_topic_score_gemma":0.001055253,"domain_scores_codex":[0.9999188,0.00001356193,0.000003598288,0.00001692455,0.00002774008,0.00001930551],"domain_scores_gemma":[0.9999753,0.000003445579,0.000005074376,0.000004208579,0.000004552534,0.00000732087],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0003009139,0.0002748537,0.0004207696,0.0005899305,0.0000495016,0.0006337963,0.0002042524,0.002858485,0.7898583,0.05414831,0.01028684,0.1403741],"study_design_scores_gemma":[0.00009459537,0.0003360609,0.001018635,0.00003356879,0.00003611565,0.0007057328,0.00003963662,0.002723141,0.8485437,0.003926723,0.142512,0.00003009466],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"other","genre_gemma":"methods","genre_scores_codex":[0.3686635,0.009011918,0.2332946,0.001611316,0.001084806,0.0007401985,0.004618388,0.004223179,0.3767521],"genre_scores_gemma":[0.8558123,0.006074906,0.06798255,0.0004113908,0.0001057859,0.0001984759,0.00216224,0.0002651338,0.06698722],"genre_candidate":"methods","genre_consensus":null,"teacher_disagreement_score":0.007833447,"threshold_uncertainty_score":0.02620548,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01909284109852773,"score_gpt":0.226526262501436,"score_spread":0.2074334214029082,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}