{"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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow","insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0004149925,0.0006256922,0.0006088828,0.00006673638,0.0003838065,0.0001828867,0.001548525,0.0004069773,0.002488258],"category_scores_gemma":[0.0006999388,0.0004094994,0.0004015986,0.0003953068,0.0003876053,0.0006431652,0.0003089115,0.0005716117,0.0001324542],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003221872,"about_ca_system_score_gemma":0.0001358094,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004196109,"about_ca_topic_score_gemma":0.000005826701,"domain_scores_codex":[0.9968763,5.681987e-7,0.001001221,0.0005425991,0.0007859825,0.0007933079],"domain_scores_gemma":[0.9965432,0.000593058,0.0006712641,0.00168415,0.0002778351,0.0002305029],"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":[0.00005978229,0.0002092871,0.00003623989,0.0007190827,0.0002834722,0.000001025651,0.002561743,0.00001952589,0.9069576,0.00002070417,0.01159852,0.07753298],"study_design_scores_gemma":[0.000270876,0.000006795652,0.0005657179,0.0002533712,0.00009881341,0.00006031021,0.00465725,0.0003169438,0.9747373,0.00002294044,0.01851107,0.0004985779],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"other","genre_gemma":"empirical","genre_scores_codex":[0.2966485,0.0001323123,0.000004745221,0.0006226676,0.00008174648,0.0004682323,0.00004112803,0.0001411434,0.7018595],"genre_scores_gemma":[0.9913799,0.00004006248,0.0002324283,0.0002180205,0.0005245096,0.0006119711,0.00003958849,0.00009467023,0.006858843],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.6950006,"threshold_uncertainty_score":0.9998357,"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."}}