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新型手性环胍小分子催化剂发布时间:2022-08-17 所属分类:有机化学 ■ 产品介绍手性有机小分子催化剂因具有反应条件温和、环境友好、催化剂易于回收利用、符合绿色化学的要求等优点,成为近年来不对称催化领域发展起来的一个研究热点。其中,手性环胍类有机小分子催化剂可用于不对称的Michael 加成反应、Mannich反应、脱羧反应、胺化反应及炔烃的手性连烯重排反应等等,并可实现良好收率和立体选择性,充分显示了手性环胍小分子催化剂在不对称反应中的巨大潜力。 产品性质稳定,易于储存; 反应条件温和,反应易于操作; 反应底物范围广,可催化多种反应类型; 催化剂无金属残留,可用于制药或香精香料生产; 高度优势的产品价格,齐全的包装规格,国内现货量充足。 ■ 手性五元二环胍产品编号 | 产品名称 | 结构式 | CAS | 包装 | 1499942 | (2S,6S)-双苄基五元二环胍 (2S,6S)-2,6-Di-benzyl-2,3,5,6-tetrahydro-1H-imidazo[1,2-a]imidazole, 98% | | 877773-30-3 | 100 mg 500 mg | 1489476 | (2S,6S)-双叔丁基五元二环胍 (2S,6S)-2,6-Di-tert-butyl-2,3,5,6-tetrahydro-1H-imidazo[1,2-a]imidazole, 98% | | 877773-38-1 | 100 mg 500 mg |
■ 产品技术应用1. Biomimetic Enantioselective Decarboxylative Reactions catalysed by chiral bicyclic guanidine; 2. Bicyclic guanidine-catalyzed enantioselective Phospha-Michael reaction; 3. Bicyclic Guanidine-Catalyzed Direct Asymmetric Allylic Addition of N-Aryl Alkylidene-Succinimides; 4. Enantioselective Protonation Catalyzed by a Chiral Bicyclic Guanidine; 5. Chiral bicyclic guanidine catalysed Mannich reaction; 6. Enantiodivergent and g-Selective Asymmetric Allylic Amination; 7. Enantioselective Synthesis of Chiral Allenoates by Guanidine-Catalyzed Isomerization of 3-Alkynoates. Ref.: [1]. Chem. Eur. J. 2011, 17, 8363 - 8370; [2]. Chemical Commununications, 2007, 47, 5058-5060; [3]. Chem. Eur. J. 2010, 16, 12534 - 12537; [4]. Angew. Chem. Int. Ed. 2008, 47, 5641 - 5645; [5]. a). Chem. Eur. J. 2011, 17, 3571 - 3574; b). Chem. Eur. J. 2010, 16, 779 -782; [6]. Angew. Chem. Int. Ed. 2012, 51, 1 - 6; [7]. J. Am. Chem. Soc. 2009, 131, 7212 - 7213. ■ 其它手性有机小分子催化剂产品编号 | 产品名称 | 结构式 | CAS | 包装 | 571700 | (S)-(+)-2-(苯胺甲基)吡咯烷 (S)-(+)-2-(Anilinomethyl)pyrrolidine, 97% | | 64030-44-0 | 250 mg 1 g | 237409 | L-氮杂环丁烷-2-羧酸 L-Azetidine-2-carboxylic acid, 98% | | 2133-34-8 | 50 mg 250 mg | 807310 | (S)-α,α-双[3,5-双(三氟甲基)苯基]-2-吡咯烷甲醇三甲基硅基醚 (S)-α,α-Bis[3,5-bis(trifluoromethyl)phenyl]-2-pyrrolidinemethanol trimethylsilyl ether, 95% | | 848821-61-4 | 250 mg 1 g | 137949 | α,α-二苯基-N-甲基-D-脯氨醇 α,α-Diphenyl-N-methyl-D-prolinol, 98% [ee: 98%] | | 144119-12-0 | 250 mg 1 g | 502051 | α,α-二苯基-N-甲基-L-脯氨醇 α,α-Diphenyl-N-methyl-L-prolinol, 97% | | 110529-22-1 | 250 mg 1 g 5 g | 626149 | (R)-(+)-2-(二苯基甲基)吡咯烷 (R)-(+)-2-(Diphenylmethyl)pyrrolidine, 97% | | 22348-31-8 | 250 mg 1 g 5 g | 167670 | (S)-2-二苯基甲基吡咯烷 (S)-2-Diphenylmethylpyrrolidine, 97% | | 119237-64-8 | 250 mg 1 g | 103137 | (R)-(+)-α,α-二苯基脯氨醇 (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol, 98% | | 22348-32-9 | 250 mg 1 g 5 g | 200580 | (S)-(-)-α,α-二苯基-2-脯氨醇 (S)-(-)-α,α-Diphenyl-2-pyrrolidinemethanol, 98% | | 112068-01-6 | 500 mg 1 g 5 g | 135264 | α-甲基-L-脯氨酸 α-Methyl-L-proline, 98% | | 42856-71-3 | 250 mg 1 g 5 g | 132204 | L-脯氨酸 L-Proline, 99% | | 147-85-3 | 25 g 100 g 500 g | 599946 | (S)-(+)-1-(2-吡咯烷甲基)吡咯烷 (S)-(+)-1-(2-Pyrrolidinylmethyl)pyrrolidine, 98% | | 51207-66-0 | 250 mg 1 g | 807441 | N-[(2S)-2-吡咯烷甲基]-三氟甲磺酰胺 N-[(2S)-2-Pyrrolidinylmethyl]-trifluoromethanesulfonamide, 98.5% [ee:98.5%] | | 782495-18-5 | 100 mg 500 mg | 807367 | (S)-(-)-5-(吡咯烷-2-基)-1H-四唑 (S)-(-)-5-(2-Pyrrolidinyl)-1H-tetrazole, 98% | | 33878-70-5 | 100 mg 500 mg | 204555 | L-4-羧基噻唑烷 L-4-Thiazolidinecarboxylic acid, 98% | | 34592-47-7 | 5 g 25 g 100 g |
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