CAS: 56360-46-4; 4',5'-Dibromo-3',6'-Dihydroxy-2',7'-Dinitro-3H-Spiro[isobenzofuran-1,9'-Xanthen]-3-One

上下游产品

eosin y phthalic anhydride 2-(2,4-dihydroxybenzoyl)benzoic acid recorcinolethyl 2-(2',7'-dibromo-6'-hydroxy-4',5'-dinitro-3'-oxo-3H-xanthen-9'-yl)benzoate

📜荧光素置于乙醇,溴,硝酸,溶剂黄146体系中,化学反应生成 曙红(醇溶)
参考文献:Baeyer,Justus Liebigs Annalen Der Chemie,1876,Vol. 183,P. 31
标题:Baeyer,Justus Liebigs Annalen Der Chemie,1876,Vol. 183,P. 31

专利信息

专利号:EP-3679033-A1
优先权日:2018-03-28
标题 :Method of synthesis of 5,6 bis(5 alkoxythiophen 2 yl)pyrazine-2,3-dicarbonitriles, derivatives of dicyanopyrazine and use thereof

专利号:EP-3679033-B1
优先权日:2018-03-28
标题 :Method of synthesis of 5,6-bis(5-alkoxythiophen-2-yl)pyrazine-2,3-dicarbodinitriles, derivatives of dicyanopyrazine and use thereof
发明人：BURES FILIP; KLIKAR MILAN; HLOUSKOVA ZUZANA
权利人:UNIV PARDUBICE

专利号:US-4256727-A
优先权日:1978-09-18
标 题:Synthesis and use of diagnostic radio-pharmaceuticals comprising radioactive isotopes of bromine with dyes
发明人：TRIPLETT JOHN W; SMITH RANDALL B
权利人:UNIV KENTUCKY RES FOUND
摘要:A process for preparing bromine-containing dyes labelled with gamma-emitting isotopes of bromine, and the product thereof which is useful as an imaging agent for the hepato-biliary system, particularly in dynamic imaging methods. The dyes prepared are from the class of triarylmethane dyes, and also from the phthalein subclass of the class of xanthene dyes, and the labelling thereof is effected with 76Br, 77Br or 82Br. The process for preparing these dyes involves reacting the non-brominated dye precursor with either 76Br2, 77Br2 or 82Br2. This is a substitution type of reaction in which a ring hydrogen is substituted by either 76Br, 77Br or 82Br.

专利号:CN-116970149-A
优先权日:2023-08-01
标 题 :Preparation of conjugated porous polymer and application of conjugated porous polymer in synthesis of key intermediate of photocatalytic fulvestrant

专利号:CN-106905099-B
优先权日:2017-02-27
标 题 :A method of visible light-induced high-efficiency synthesis of β-ketosulfonyl compounds

专利号:CN-106905099-A
优先权日:2017-02-27
标 题 :A method for the efficient synthesis of β-ketone sulfonyl compounds induced by visible light