CAS: 3392-97-0; 2,6-Dimethoxybenzaldehyde

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CAS号68-12-2 N,N-二甲基甲酰胺 | CAS号151-10-0 间苯二甲醚 | CAS号109-94-4 甲酸乙酯 | CAS号67-56-1 甲醇 | CAS号121336-28-5 1,3-dimethoxy-2... | CAS号16700-55-3 (2,6-二甲氧基苯基)甲醇 | CAS号112185-37-2 | CAS号109-72-8 正丁基锂 | CAS号2785-97-9 lithium,1,3-dim... | CAS号80405-38-5 (E)-1,3-dimetho... | CAS号387-46-2 2,6-二羟基苯甲醛 | CAS号244121-75-3 7-hydroxy-1-met... | CAS号700-44-7 2-羟基-4-甲氧基苯甲醛 | CAS号16700-55-3 (2,6-二甲氧基苯基)甲醇 | CAS号1466-76-8 2,6-二甲氧基苯甲酸 | CAS号126829-31-0 2-炔基-1,3-二甲氧基苯 | CAS号154424-13-2 methyl 3-(2,6-d... | CAS号91-10-1 2,6-二甲氧基酚/紫丁香醇 | CAS号5673-07-4 2,6-二甲氧基甲苯 | CAS号3166-95-8 (2,6-Dimethoxyp...

2,6-二甲氧基苯甲酸置于4,4'-二甲氧基二苯二硫,Iridium(Lll) Bis[2-(2,4-Difluorophenyl)-5-Methylpyridine-N,C20]-4,40-Di-Tert-Butyl-2,20-Bipyridine Hexafluorophosphate,三苯基膦体系中,用 甲苯 用作溶剂,化学反应 24.0H,以86%的收率获得2,6-二甲氧基苯甲醛
参考文献:通过光氧化还原催化生成磷烷基自由基可实现独立于电压的强c-O键活化
标题:通过光氧化还原催化生成磷烷基自由基可实现独立于电压的强c-O键活化
摘要:尽管醇和羧酸作为有机分子中的官能团盛行,并且有可能用作自由基前体,但c-O键仍然难以激活.我们报告了通过光氧化还原催化直接从这些普遍存在的官能团同时进入烷基和酰基自由基的合成策略.该方法利用了磷化氢自由基的独特反应性,该反应是由膦自由基阳离子和以氧为中心的亲核试剂之间的极性/ Set交叉产生的.我们显示了在末端醇被俘获以提供脱氧产物的情况下,将苄醇还原为相应的苄基所需要的反应性.使用相同的方法,我们演示了合成通用的酰基自由基的获得方法,可以将芳香族和脂肪族羧酸还原为相应的醛,并具有出色的化学选择性.该协议还通过分子内酰基自由基环化将羧酸转化为杂环和环状酮,从而一步一步形成c-o,C-n和c-c键.
Doi:10.1021/acscatal.8B03592

专利信息

专利号:US-2009306400-A1
优先权日:2006-03-27
标 题:Convergent process for the synthesis of taxane derivatives.
发明人：HENRI JOHN T; MCCHESNEY JAMES D; VENKATARAMAN SYLESH K; LAMB RODGER L; FOSTER JONATHAN E; SUMNER CHRISTIAN M; YE SHANGPING
权利人:HENRI JOHN T; MCCHESNEY JAMES D; VENKATARAMAN SYLESH K; LAMB RODGER L; FOSTER JONATHAN E; SUMNER CHRISTIAN M; YE SHANGPING
摘要:The present invention is broadly directed to novel compounds useful for the synthesis of biologically active compounds, including taxane derivatives, and convergent processes for the preparation of these taxane derivatives and their intermediates.

专利号:US-8202985-B2
优先权日:2005-10-31
标 题:Monomer compositions for the synthesis of polynucleotides, methods of synthesis, and methods of deprotection
发明人：DELLINGER DOUGLAS J; TIMAR ZOLTAN; SIERZCHALA AGNIESZKA; DELLINGER GERALDINO; CARUTHERS MARVIN H
权利人:DELLINGER DOUGLAS J; TIMAR ZOLTAN; SIERZCHALA AGNIESZKA; DELLINGER GERALDINO; CARUTHERS MARVIN H; AGILENT TECHNOLOGIES INC; UNIV COLORADO
摘要:Nucleotide monomers, polynucleotides, methods of making each, and methods of deprotecting each, are disclosed. An embodiment of the nucleotide monomer, among others, includes a nucleotide monomer having a heterobase protecting group selected from structures I through III as described herein. An embodiment of the polynucleotide, among others, includes a plurality of nucleotide moieties having a heterobase protecting group selected from one of structures I through III as described herein.

专利号:US-7759471-B2
优先权日:2005-10-31
标题 :Monomer compositions for the synthesis of RNA, methods of synthesis, and methods of deprotection
发明人：DELLINGER DOUGLAS J; TIMAR ZOLTAN; SIERZCHALA AGNIESZKA; DELLINGER GERALDINE; CARUTHERS MARVIN H
权利人:AGILENT TECHNOLOGIES INC; UNIV COLORADO
摘要:Nucleotide monomers, polynucleotides, methods of making each, methods of deprotecting each, and the like are disclosed herein.

专利号:US-4271172-A
优先权日:1979-06-25
标 题 :6-Amino-spiro[penam-2,4'-piperidine]-3-carboxylic acids, antibacterial compositions thereof and method of use thereof
发明人：RODRIGUEZ LUDOVIC; LECLERCQ JACQUES; YKMAN PIERRE; COSSEMENT ERIC
权利人:UCB SA
摘要:6-Amino-spiro[penam-2,4'-piperidine]-3-carboxylic acids, salts and esters thereof of the formula ##STR1## wherein R 1 is hydrogen, benzyl or an alkali metal or ammonium ion and R 2 is methyl, phenyl or benzyl and process for preparing the same. n These compounds are useful as intermediates in the synthesis of a new group of antibiotics having properties similar to penicillins, besides own antibiotic activity with a broad antibacterial spectrum. Therefore, they are useful as antibacterials agents and as therapeutic agents for humans and for animals in the treatment of infectious diseases caused by Gram-positive and Gram-negative bacteria.

专利号:US-4171439-A
优先权日:1975-04-11
标 题 :Antibacterial analogs of isocephalosporins
发明人：CONWAY TERRY T; LIM GARY M F; MENARD MARCEL
权利人:BRISTOL MYERS CO
摘要:There is described the stereoselective total synthesis of novel DELTA 2,3-1,4-morpholine-2-carboxylic acids possessing a fused beta -lactam ring in the 1,6-position and carrying a substituent cis to carbon 5 in the 7-position of the fused ring system represented by the general formula I wherein Z is halo or hydroxyl and X is acylamino. Also included in the invention are compounds of the above formula in which the carboxyl group at the 2-position is protected as by an easily cleavable ester group and salts of both the free acids and carboxyl-protected compounds. The compounds are potent antibacterial agents.

专利号:US-2010069643-A1
优先权日:2005-12-21
标 题:Convergent Process for the Synthesis of Taxane Derivatives
发明人：MCCHESNEY JAMES D; HENRI JOHN T; VENKATARAMAN SYLESH K; LAMB RODGER L; FOSTER JONATHAN E; SUMMER CHRISTIAN M; YE SHANGPING
权利人:MCCHESNEY JAMES D; HENRI JOHN T; VENKATARAMAN SYLESH K; LAMB RODGER L; FOSTER JONATHAN E; SUMMER CHRISTIAN M; YE SHANGPING
摘要:The application provides a process for the preparation of taxane derivatives and intermediates useful in such processes.