CAS: 598-30-1; Sec-Butyllithium

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CAS号78-86-4 2-氯丁烷 | CAS号15366-08-2 仲丁基氯化镁 | CAS号7439-93-2 金属锂 | CAS号4394-85-8 N-甲酰吗啉 | CAS号38952-62-4 4,4-羰基双吗啉 | CAS号6342-79-6 1,2-dimorpholin... | CAS号565-61-7 3-甲基-2-戊酮 | CAS号583-48-2 3,4-二甲基己烷 | CAS号114143-95-2 2-[(tert-butyld... | CAS号3769-23-1 4-甲基-1-己烯 | CAS号1636-34-6 2,3-二苯基-2,3-丁二醇

氯代仲丁烷置于lithium体系中,用 环己烷 作为反应溶剂,化学反应 0.5H,反应生成 仲丁基锂
参考文献:复合物诱导的邻近效应和偶极稳定的碳负离子:复合物在甲酰胺的 α'-锂化中作用的动力学证据
标题:复合物诱导的邻近效应和偶极稳定的碳负离子:复合物在甲酰胺的 α'-锂化中作用的动力学证据
摘要:Cinetique De La Lithiation Des (N,N-二甲基三异丙基-2,4,6) 和 (N,N-二乙基三异丙基-2,4,6) 苯甲酰胺par Le Sec-丁基锂和环己烷
DOI:10.1021/ja00232A029

专利信息

专利号:US-11661406-B2
优先权日:2018-08-13
标 题 :Method for producing intermediate useful for synthesis of SGLT inhibitor
发明人：LI QING RI; YOON HEE KYOON
权利人:DAEWOONG PHARMACEUTICAL CO LTD
摘要:A method of preparing an intermediate useful for the synthesis of a diphenylmethane derivative that can be used as an SGLT inhibitor is described. A method of synthesizing a compound of Formula 7 can address problems of existing synthesis processes requiring the synthesis of the Grignard reagent and management of related substances. In addition, the method can minimize the generation of related substances, and thus does not require reprocessing of reaction products, thereby simplifying the process. Accordingly, the production yield of a diphenylmethane derivative can be maximized.

专利号:US-11548898-B2
优先权日:2017-07-06
标题 :Synthesis of halichondrins
发明人：KISHI YOSHITO; AI YANRAN; YE NING; WANG QIAOYI; YAHATA KENZO; ISO Kentaro; NAINI SANTHOSH REDDY; YAMASHITA SHUJI; LEE JIHOON; OHASHI ISAO; FUKUYAMA TAKASHI
权利人:HARVARD COLLEGE; EISAI R&D MAN CO LTD
摘要:The present invention provides methods for the synthesis of ketones involving a Ni/Zr-mediated coupling reaction. The Ni/Zr-mediated ketolization reactions can be used in the synthesis of halichondrins (e.g., halichondrin A, B, C; homohalichondrin A, B, C; norhalichondrin A, B, C), and analogs thereof. Therefore, the present invention also provides synthetic methods useful for the synthesis of halichondrins, and analogs thereof. Also provided herein are compounds (i.e., intermediates) useful in the synthesis of halichondrins, and analogs thereof. In particular, the present invention provides methods and compounds useful in the synthesis of compound of Formula (H3-A).

专利号:US-2006293466-A1
优先权日:2003-06-20
标 题:Methods for synthesis of graft polymers
发明人：GAUTHIER MARIO; YUAN ZHONGSHUN
权利人:UNIV WATERLOO
摘要:A process for the synthesis of arborescent polymers comprises epoxidation of a first polymer and grafting thereto a second polymer having groups reactive to the epoxide groups on the first polymer. The epoxidation and grafting steps can be repeated. In an additional embodiment, the present invention provides a one-pot method for the synthesis of arborescent polymers. In a reaction pot, a first polymer is copolymerized and then reacted with an activating compound in order to generate a polyfunctional macroinitiator. Monomers are then added to the reaction pot, the monomers having functional groups reactive towards reactive sites on the first polymer.

专利号:US-6184168-B1
优先权日:1997-09-22
标题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
发明人：LYNCH THOMAS J
权利人:BRIDGESTONE CORP
摘要:The invention provides a catalyst composition, comprising: (a) an organolithium compound; and, (b) an organic acid salt of lanthanide series element; wherein: (1) only components (a) and (b) are required to promote the synthesis of 1,4-trans-polybutadiene; (2) the ratio of component (a) to component (b) is selected to maximize formation of the trans structure of said 1,4-trans-polybutadiene; and, (3) components (a) and (b) are selected for enabling further diblock synthesis. The invention further contemplates a process for using the catalyst to synthesize 1,4-trans-polybutadiene and other polymers and copolymers having trans configuration in the conjugated diene monomer contributed units.

专利号:US-2013196019-A1
优先权日:2010-03-18
标 题:Silicon-containing block co-polymers, methods for synthesis and use
发明人：WILLSON C GRANT; BATES CHRISTOPHER M; STRAHAN JEFFREY; ELLISON CHRISTOPHER JOHN; MUELLER BRENNEN
权利人:WILLSON C GRANT; BATES CHRISTOPHER M; STRAHAN JEFFREY; ELLISON CHRISTOPHER JOHN; MUELLER BRENNEN; NAT UNIVERSITY OF SINAPORE
摘要:The present invention describes the synthesis of silicon-containing monomers and copolymers. The synthesis of a monomer, trimethyl-(2-methylenebut-3-enyl)silane (TMSI) and subsequent synthesis of diblock copolymer with styrene, forming polystyrene-block-polytrimethylsilyl isoprene, and synthesis of diblock copolymer Polystyrene-block-polymethacryloxymethyltrimethylsilane or PS-b-P(MTMSMA). These silicon containing diblock copolymers have a variety of uses. One preferred application is as novel imprint template material with sub-100 nm features for lithography.

专利号:US-2012302756-A1
优先权日:2010-02-19
标 题 :Process for synthesis of 2-substituted pyrrolidines and piperadines
发明人：LELETI RAJENDER REDDY; LIU YUGANG; PRASHAD MAHAVIR
权利人:LELETI RAJENDER REDDY; LIU YUGANG; PRASHAD MAHAVIR
摘要:The present invention provides a highly efficient, versatile one-step process for asymmetric synthesis of either diastereomer of 2-substituted pyrrolidines from a single starting material with excellent yields and high diastereoselectivety. Also provided is a method for the asymmetric synthesis of both diastereomers of 2-substituted piperidines with good yields and excellent diastereoselectivety. Diasteroselectivity is controlled effectively by choice of reducing agent.