CAS: 52605-97-7; 2,3-Dimethoxypyridine

相似化合物

13472-83-8 2140326-45-8 1186310-85-9

上下游产品

CAS号52605-96-6 2-氯-3-甲氧基吡啶 | CAS号124-41-4 甲醇钠 | CAS号24100-18-3 2-溴-3-甲氧基吡啶 | CAS号2402-77-9 2,3-二氯吡啶 | CAS号6636-78-8 2-氯-3-羟基吡啶 | CAS号109-09-1 2-氯吡啶 | CAS号52605-99-9 5,6-二甲氧基烟醛 | CAS号52605-98-8 5-溴-2,3-二甲氧基吡啶 | CAS号52606-08-3 6-bromo-2,3-dim... | CAS号1112851-31-6 5,6-二甲氧基烟腈 | CAS号123631-83-4 2,3-二甲氧基吡啶-4-醇 | CAS号944900-64-5 2,3-二甲氧基异烟醛

2,3-二氯吡啶置于sodium Methylate体系中,用 N,N-二甲基甲酰胺 作为反应溶剂,化学反应 2.0H,以6%的收率获得产物2,3-二甲氧基吡啶
参考文献:一些卤代吡啶与甲醇盐和甲硫醇盐离子在二甲基甲酰胺中的反应
标题:一些卤代吡啶与甲醇盐和甲硫醇盐离子在二甲基甲酰胺中的反应
摘要:2,6-和2,5-二溴吡啶和2,3-和3,5-二氯吡啶与异丙硫醇钠和甲硫醇钠的反应根据实验条件提供单取代或双取代的产物.相同的吡啶与甲醇钠反应,得到非常好收率的单取代产物.仅在2,6-二溴-和3,5-二氯吡啶中容易发生双取代.还描述了从卤代甲氧基吡啶或卤代硫代甲氧基吡啶开始的一些甲氧基硫代甲氧基吡啶的合成.双(烷硫基)吡啶可被hmpa中的钠裂解,得到双(巯基)吡啶.
DOI:10.1016/s0040-4020(01)96539-1

专利信息

专利号:US-2022395800-A1
优先权日:2019-11-04
标题:Device for automated synthesis of oligo- and polysaccharides
发明人：SEEBERGER PETER H; DANGLAD FLORES JOSE; LE MAI HOANG KIM; PARDO VARGAS ALONSO; SLETTEN ERIC; SALWICZEK MARIO
权利人:MAX PLANCK GESELLSCHAT ZU RFERDERUNG DER WSS E V; GlycoUniverse GmbH & Co KG&A
摘要:The present invention generally relates to automated synthesis technology, and more particularly, to a device and method for automated synthesis of oligo- and polysaccharides on a solid support. In particular the present invention relates to a device for automated synthesis of oligo- and polysaccharides on a solid support comprising a reaction vessel, a reagent storing component, a reagent delivery system, a cooling device for cooling reaction vessel, and a pre-cooling device for pre-cooling the reagents to be supplied.

专利号:EP-3835306-A1
优先权日:2019-12-13
标题:Microwave-assisted method for synthesis of oligo- and polysaccharides on solid phase
权利人:MAX PLANCK GESELLSCHAFT
摘要:The present invention relates to a method for synthesizing oligo- and polysaccharides using microwave radiation, in particular to a method and a device for automated synthesis of oligo- and polysaccharides.

专利号:WO-2015131100-A1
优先权日:2014-02-28
标题:Ligand-controlled c(sp3)-h arylation and olefination in synthesis of unnatural chiral alpha amino acids
发明人：YU JIN-QUAN
权利人:SCRIPPS RESEARCH INST
摘要:The use of ligands to tune the reactivity and selectivity of transition metal-catalysts for C(-sp3)-H bond functionalization is a central challenge in synthetic organic chemistry. Herein, we report a rare example of catalyst-controlled C(sp3)-H arylation using pyridine and quinoline derivatives: the former promotes exclusive monoarylation, whereas the latter activates the catalyst further to achieve diarylation. Successive application of these ligands enables the sequential diarylation of a methyl group in an alanine derivative with two different aryl iodides, affording a wide range of β-Ar-p-Ar ' -cc-amino acids with excellent levels of diastereoselectivity (d.r. > 20:1). Both configurations of the β-chiral center can be accessed by choosing the order in which the aryl groups are installed. The use of a quinoline derivative as a ligand also enables C(sp3)-H olefination of a protected alanine.

专利号:US-2022387957-A1
优先权日:2019-11-04
标 题 :Microwave-assisted method for synthesis of oligo- and polysaccharides on solid phase

专利号:US-7687487-B2
优先权日:2007-04-19
标题 :Camptothecin-analog with a novel, “flippedâ€? lactone-stable, E-ring and methods for making and using same
发明人：HAUSHEER FREDERICK H
权利人:BIONUMERIK PHARMACEUTICALS INC
摘要:The present invention discloses: (i) a novel, lactone-stable, “flippedâ€? E-ring camptothecin, pharmaceutically-acceptable salts, and/or analogs thereof; (ii) methods of synthesis of said novel, lactone-stable, “flippedâ€? E-ring camptothecin, pharmaceutically-acceptable salts, and/or analogs thereof; (iii) pharmaceutically-acceptable formulations comprising said novel, lactone-stable, “flippedâ€? E-ring camptothecin, pharmaceutically-acceptable salts, and/or analogs thereof, and, optionally, one or more additional chemotherapeutic agents; (iv) methods of administration of said novel, lactone-stable, “flippedâ€? E-ring camptothecin, pharmaceutically-acceptable salts, and/or analogs thereof, and, optionally, one or more additional chemotherapeutic agents, to subjects in need thereof; and (v) devices for the administration of said novel, lactone-stable, “flippedâ€? E-ring camptothecin, pharmaceutically-acceptable salts, and/or analogs thereof, and, optionally, one or more chemotherapeutic aents, to subjects in need thereof.

专利号:US-8053165-B2
优先权日:2008-03-18
标 题:Hydroxyl-containing monomer, polymer, resist composition, and patterning process
发明人：KINSHO TAKESHI; OHASHI MASAKI; HASEGAWA KOJI; WATANABE TAKERU
权利人:SHINETSU CHEMICAL CO
摘要:A hydroxyl-containing monomer of formula (1) is provided wherein R 1 is H, F, methyl or trifluoromethyl, R 2 and R 3 are monovalent C 1 -C 15 hydrocarbon groups, or R 2 and R 3 may form an aliphatic ring. The monomers are useful for the synthesis of polymers which have high transparency to radiation of up to 500 nm and the effect of controlling acid diffusion so that the polymers may be used as a base resin to formulate radiation-sensitive resist compositions having a high resolution.