CAS: 120-98-9; 5-Amino-4-Hydroxybenzene-1,3-Disulfonic Acid

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CAS号88-28-8 4-hydroxy-5-nit... | CAS号108-95-2 苯酚

苯酚置于硫酸,三氧化硫,Sodium Hydrogensulfite体系中,化学反应生成5-氨基-4-羟基-1,3-苯二磺酸
参考文献:Sakellarios,Chemische Berichte,1922,Vol. 55,P. 2852
标题:Sakellarios,Chemische Berichte,1922,Vol. 55,P. 2852

专利信息

专利号:US-9469614-B2
优先权日:2011-10-27
标 题:Synthesis of triazolopyrimidine compounds
发明人：ZUPANCIC BORUT; MARAS NENAD; STERK DAMJAN
权利人:LEK PHARMACEUTICALS
摘要:The present invention relates to the field of organic synthesis and describes the synthesis of specific triazolopyrimidine compounds and intermediates thereof as well as related derivatives.

专利号:EP-2586773-A1
优先权日:2011-10-27
标题 :Synthesis of Triazolopyrimidine Compounds
权利人:LEK PHARMACEUTICALS
摘要:The present invention relates to the field of organic synthesis and describes the synthesis of specific triazolopyrimidine compounds and intermediates thereof as well as related derivatives.

专利号:US-4734495-A
优先权日:1985-07-17
标 题 :Process and intermediates for beta-lactam antibiotics
发明人：EVANS DAVID A; SJOGREN ERIC B
权利人:HARVARD COLLEGE
摘要:1-Benzyl(or substituted benzyl)-3β-[4(S)-aryloxazolidin-2-one-3-yl]-4β-(2-arylvinyl)azetidin-2-ones are provided via cycloaddition of a 4(S)-aryloxazolidin-2-one-3-ylacetyl halide and an imine formed with a benzylamine and a 3-arylacrolein, e.g. cinnamaldehyde. The azetidinones are useful chiral intermediates in an asymmetric synthesis of 1-carba(1-dethia)-3-hydroxy-3-cephem-4-carboxylic acids and esters and to monocyclic β-lactam antibiotics.

专利号:US-4870169-A
优先权日:1985-07-17
标 题:Intermediates for beta-lactam antibiotics
发明人：EVANS DAVID A; SJOGREN ERIC B
权利人:HARVARD COLLEGE
摘要:1-Benzyl(or substituted benzyl)-3β-[4(S)-aryloxazolidin-2-one-3-yl]-4β-(2-arylvinyl)azetidin-2-ones are provided via cycloaddition of a 4(S)-aryloxazolidin-2-one-3-ylacetyl halide and an imine formed with a benzylamine and a 3-arylacrolein, e.g. cinnamaldehyde. The azetidinones are useful chiral intermediates in an asymmetric synthesis of 1-carba(1-dethia)-3-hydroxy-3-cephem-4-carboxylic acids and esters and to monocyclic β-lactam antibiotics.

专利号:CA-2852652-A1
优先权日:2011-10-27
标题 :Synthesis of triazolopyrimidine compounds

专利号:EP-2771326-A1
优先权日:2011-10-27
标题:Synthesis of triazolopyrimidine compounds