{"id":"W1926963074","doi":"10.1139/v11-055","title":"Silica-supported methanesulfonic acid — An efficient solid Brønsted acid catalyst for the Pechmann reaction in the presence of higher <i>n</i>-alkanes","year":2011,"lang":"en","type":"article","venue":"Canadian Journal of Chemistry","topic":"Multicomponent Synthesis of Heterocycles","field":"Chemistry","cited_by":12,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Methanesulfonic acid; Chemistry; Catalysis; Reusability; Solid acid; Organic chemistry; Brønsted–Lowry acid–base theory; Environmentally friendly","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00009203266,0.0002591098,0.0001890659,0.0002009356,0.00009338286,0.0001091264,0.0002126105,0.0002105002,0.0006038395],"category_scores_gemma":[0.00008850879,0.0001231336,0.0001652554,0.0001415627,0.0001144827,0.0001887955,0.0001405731,0.0002116762,0.0004471592],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001557882,"about_ca_system_score_gemma":0.0001418642,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0005203878,"about_ca_topic_score_gemma":0.00190265,"domain_scores_codex":[0.9999228,0.000008823154,0.000006983611,0.00001828066,0.00002787534,0.00001515891],"domain_scores_gemma":[0.9999653,0.000006705024,0.000008669634,0.000004699809,0.000006304623,0.000008268695],"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":[0.0000214601,0.0000063029,0.00003343883,0.00002393257,0.00000261332,0.00002184316,0.000004135014,0.00009818382,0.9984677,0.00004912012,0.00001343286,0.001257695],"study_design_scores_gemma":[0.000002390095,0.00005824777,0.000261454,0.000001092672,0.000003395678,0.0000309108,0.00000239437,0.0004095394,0.9986602,0.00001029533,0.0005582445,0.000001806256],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9871062,0.001437347,0.007013829,0.00004574727,0.00002670958,0.00003446434,0.0001674846,0.0001157366,0.004052565],"genre_scores_gemma":[0.9917692,0.0005358768,0.005320019,0.00001338029,0.00000655049,0.0000105687,0.0001677817,0.00002160187,0.002155079],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0006038395,"threshold_uncertainty_score":0.002020001,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03458626275677512,"score_gpt":0.2598259039000312,"score_spread":0.2252396411432561,"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."}}