CAS: 1149-24-2; Diethyl 2,6-Dimethylpyridine-3,5-Dicarboxylate

相似化合物

2602-36-0 70993-72-5 13602-96-5

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3-氨基巴豆酸乙酯置于caesium Carbonate体系中,用 乙腈 用作溶剂,化学反应 10.0H,反应生成2,6-二甲基吡啶-3,5-二甲酸二乙酯
参考文献:Nicl2.dme调节烯烃的可见光促进的无光催化加氢和二酰化.
标题:Nicl2.dme调节烯烃的可见光促进的无光催化加氢和二酰化.
摘要:在这里,我们描述了一种可见光促进的加氢酰化策略,该策略有助于在无光催化剂的条件下,通过酰基加成和氢原子转移途径,从烯烃和4-酰基-1,4-二氢吡啶制备酮.广泛的底物范围,非常好至高收率,成功的按比例放大实验以及方便地制备高度官能化的酮衍生物等突出了效率.另外,该方案允许在nicl2.dme存在下通过烯烃二酰化反应合成1,4-二羰基化合物.
Doi:10.1021/acs.Orglett.9B04595

专利信息

专利号:US-9556140-B2
优先权日:2013-01-26
标 题 :Approach for synthesis of catechins
发明人：DUGAR SUNDEEP; MAHAJAN DINESH; RAI KUMAR SANTOSH; TRIPATHI VINAYAK; PATIL ISHWAR RAKESH
权利人:SPHAERA PHARMA PRIVATE LTD
摘要:A process for synthesis of enatiomerically pure or enatiomerically enriched or racemic mixture of (+ and/or −) epicatechin and its intermediates, comprising the steps of: (i) obtaining penta-protected quercetin; (ii) reducing the penta-protected quercetin obtained from step (i); (iii) optionally deprotecting the compound of step (ii); (iv) reducing the compound obtained from step (ii) or step (iii) in the presence of a chiral/achiral reducing agent to obtain a chiral intermediate; (v) deprotecting and/or hydrogenation of the chiral intermediate obtained from step (iv) to obtain (−)-epicatechin; (vi) optionally simultaneously deprotecting and by drogenation of the compound obtained from step (ii) to obtain racemic epicatechin.

专利号:US-10053420-B2
优先权日:2015-01-30
标 题 :Processes for the preparation of compounds, such as 3-arylbutanals, useful in the synthesis of medetomidine
发明人：EKLUND LARS; EEK MARGUS; EKAMBARAM RAMESH; MAASALU ANTS
权利人:CAMBREX KARLSKOGA AB
摘要:There is provided a process for the preparation of a compound of formula (I) as defined herein, wherein said process comprises reacting a compound of formula (II) as defined s herein with one or more suitable Vilsmeier reagent.

专利号:EP-2313386-B1
优先权日:2008-07-23
标 题:Synthesis routes to 2(s),4(s),5(s),7(s)-2,7-dialkyl-4-hydroxy-5-amino-8-aryl-octanoyl amides
发明人：VRIES DE ANDREAS HENDRIKUS MARIA; VERZIJL GERARDUS KAREL MARIA; HERMSEN PETRUS JOHANNES; CASTELIJNS ANNA MARIA CORNELIA FRANCISCA
权利人:DSM IP ASSETS BV
摘要:The invention relates to a process for the preparation of compounds that are important building blocks in convergent synthesis routes to 2(S),4(S),5(S),7(S)-2,7-dialkyl-4-hydroxy-5-amino-8-aryl-octanoyl amides or pharmaceutically acceptable salts thereof, such as the compound Aliskiren, and to a process for the preparation of these octanoyl amides, comprising reacting said building block.

专利号:JP-2020117531-A
优先权日:2013-01-26
标题 :Novel process for synthesis of catechins

专利号:CN-107428648-B
优先权日:2015-01-30
标 题:Process for the preparation of compounds such as 3-arylbutanal useful in the synthesis of medetomidine

专利号:CN-107428648-A
优先权日:2015-01-30
标题 :Process for the preparation of compounds such as 3-arylbutyraldehyde useful in the synthesis of medetomidine