89-98-5 = 103-67-3 + 94-64-4 反应条件:1.1 Reagents: Hydrogen Catalysts: Copper Alloy,Base,Cu 71,Pd 29 Solvents: Methanol; 1.5 H,7 Mpa,373 K 标题:Heterogeneous Catalyzed Chemoselective Reductive Amination Of Halogenated Aromatic Aldehydes 作者:Dumoleijn,Kim N. R.; Et Al 参考文献:Chemcatchem 日期:2021 卷标:13(13) 页码:3021-3026
N-苄基-N-甲基亚硝酰胺置于sodium Tetrahydroborate,四氯化钛体系中,用 乙二醇二甲醚 用作溶剂,化学反应 14.0H,以75%的收率获得n-甲基苄胺 参考文献:Reductive Denitrosation Of Nitrosamines To Secondary Amines With Metal Halide/sodium Borohydride 标题:Reductive Denitrosation Of Nitrosamines To Secondary Amines With Metal Halide/sodium Borohydride 摘要: Doi:10.1055/s-1980-29196
专利信息
专利号:US-11639349-B2 优先权日:2020-05-28 标题:Stereoselective synthesis of intermediate for preparation of heterocyclic compound 发明人:CHEN WEN-CHANG; HSU HAN-PEI; CHOU SHAN-YEN; CHUANG SHIH-CHIEH; YEN CHI-FENG 权利人:TAI GEN BIOTECHNOLOGY CO LTD; TAIGEN BIOPHARMACEUTICALS CO BEIJING LTD; TAIGEN BIOTECHNOLOGY CO LTD 摘要:Provided is a stereoselective synthesis of an intermediate for the preparation of the heterocyclic derivative as a Cap-dependent endonuclease inhibitor. The synthesis process has the advantages of simple operation, higher yield and relatively controllable steroselectivity, such that it is suitable for large-scale production.
专利号:WO-9517903-A1 优先权日:1993-12-28 标 题:Modular design and synthesis of oxazolone-derived molecules 发明人:HOGAN JOSEPH C JR; CASEBIER DAVID; FURTH PAUL; TU CHENG 权利人:ARQULE PARTNERS L P; HOGAN JOSEPH C JR; CASEBIER DAVID; FURTH PAUL; TU CHENG 摘要:The design and synthesis of novel oxazolone-derived molecular modules and the use of the modules in the construction of new molecules and fabricated materials is disclosed. The new molecules and fabricated materials are molecular recognition agents useful in the design and synthesis of drugs, and have applications in separations and materials science.
专利号:US-6815214-B2 优先权日:2000-12-29 标 题 :Pharmaceutical uses and synthesis of diketopiperazines 发明人:BOYCE JIM P; HOWBERT J JEFFRY; TABONE JOHN C 权利人:CELLTECH R & D INC 摘要:The synthesis of novel diketopiperazines, their use in inhibiting cellular events such as those involving NFK-α, NFK-β and in the treatment of inflammation events, a combinatorial library of diverse diketopiperazines and process for their synthesis as a library and as individual compounds. In particular novel diketopiperazines are disclosed including their synthesis and use in cellular events such as activation of the transcription factor, nuclear factor, TNF-α, TNF-β and also apoptosis.
专利号:US-2005130201-A1 优先权日:2003-10-14 标 题 :Splint-assisted enzymatic synthesis of polyribounucleotides 发明人:DERAS MICHAEL; PLEISS JEFFREY A; SCARINGE STEPHEN 权利人:DHARMACON INC 摘要:The present invention comprises methods and compositions for splint-assisted enzymatic synthesis of polyribonucleotides using an RNA polymerizing enzyme. The invention provides ligating ribonucleotides comprising ligating a donor RNA molecule to an acceptor RNA molecule in the presence of RNA ligase and a splint, wherein the donor RNA molecule is comprised of at least one nucleotide and a ligation linker moiety, the acceptor RNA molecule is comprised of at least one nucleotide and a ligation linker moiety and the splint is comprised of a polyribonucleotide. The invention also provides splints for use in splint-assisted enzymatic synthesis using an RNA polymerizing enzyme.
专利号:US-2025188502-A1 优先权日:2022-03-10 标 题 :Biocatalyst and method for the synthesis of ubrogepant intermediates 发明人:CHEN HAIBIN; HU HU; CAI BAOQIN; XU JUNPENG; LIU SITONG; JIN LUPING; WU XINWEI; CUI QINYAN; ZHANG CHENGXIAO; ZHU KAILONG 权利人:ENZYMASTER NINGBO BIO ENG CO LTD 摘要:This application provides engineered transaminase polypeptides for the synthesis of Ubrogepant intermediates with high stereoselectivity, high catalytic activity and good stability. This application also provides a reaction process for the asymmetric synthesis of Ubrogepant intermediates using the transaminase polypeptide.
专利号:US-8791287-B2 优先权日:2010-07-02 标 题:Process for the synthesis of tapentadol and intermediates thereof 发明人:MOTTA GIUSEPPE; VERGANI DOMENICO; BERTOLINI GIORGIO; LANDONI NICOLA 权利人:MOTTA GIUSEPPE; VERGANI DOMENICO; BERTOLINI GIORGIO; LANDONI NICOLA; EUTICALS SPA 摘要:The object of the present invention is a new process for the synthesis of tapentadol, both as free base and in hydrochloride form, which comprises the step of alkylation of the ketone (VII) to yield the compound (VIII), as reported in Diagram 1, with high stereoselectivity due to the presence of the benzyl group as substituent of the amino group. It was surprisingly found that this substitution shifts the keto-enol equilibrium towards the desired enantiomer and amplifies the capacity of the stereocenter present in the compound (VII) to orient the nucleophilic addition of the organometallic compound at the carbonyl towards the desired stereoisomer. This substitution thus allows obtaining a considerable increase of the yields in this step, and consequently allows significantly increasing the overall yield of the entire tapentadol synthesis process. n A further object of the present invention is constituted by the tapentadol free base in solid form, obtainable by means of the process of the invention. n Still another object of the invention is represented by the crystalline forms I and II of the tapentadol free base. n A further object of the present invention is the mixture of the crystalline forms I and II of the tapentadol free base.
参考标题:Alkyl 1-Chloroalkyl Carbonates: Reagents For The Synthesis Of Carbamates And Protection Of Amino Groups 作者:Gérard Barcelo,Jean-Pierre Senet,Gérard Sennyey,Jean Bensoam,Albert Loffet 摘要:The Synthesis Of 1-Chloroalkyl Carbonates And Their Reaction With Various Type Of Amines Are Described. This Reaction Is Useful For The Synthesis Of Carbamate Pesticides And For The Protection Of Various Amino Groups, Including Amino Acids.
合成参考文献
摘要:Chciuk, T. V.; Flowers, R. A.; Flowers, R. A., Science of Synthesis Knowledge Updates, (2016) 2, 231. 摘要:Kawachi, A., Science of Synthesis Knowledge Updates, (2013) 2, 161. 摘要:Snaith, J. S., Science of Synthesis Knowledge Updates, (2011) 2, 177. 摘要:Wu, X.-F., Science of Synthesis Knowledge Updates, (2014) 1, 339. 摘要:Kwiecień, H., Science of Synthesis Knowledge Updates, (2014) 4, 106.