CAS: 7758-02-3; Potassium Bromide

相似化合物

7758-02-3 7758-02-3 7758-02-3

上下游产品

bromine potassium carbonate barium sulfide hydrogen bromidecaesium bromide potassium fluoride iron(II) bromide

1,4-二氨基-9,10-二氢-9,10-二氧代蒽-2-磺酸 反应生成 溴化钾
参考文献:De639854
标题:De639854

专利信息

专利号:US-11639349-B2
优先权日:2020-05-28
标题:Stereoselective synthesis of intermediate for preparation of heterocyclic compound
发明人：CHEN WEN-CHANG; HSU HAN-PEI; CHOU SHAN-YEN; CHUANG SHIH-CHIEH; YEN CHI-FENG
权利人:TAI GEN BIOTECHNOLOGY CO LTD; TAIGEN BIOPHARMACEUTICALS CO BEIJING LTD; TAIGEN BIOTECHNOLOGY CO LTD
摘要:Provided is a stereoselective synthesis of an intermediate for the preparation of the heterocyclic derivative as a Cap-dependent endonuclease inhibitor. The synthesis process has the advantages of simple operation, higher yield and relatively controllable steroselectivity, such that it is suitable for large-scale production.

专利号:US-5623068-A
优先权日:1994-03-07
标 题:Synthesis of DNA using substituted phenylacetyl-protected nucleotides
发明人：REDDY M PARAMESWARA; FAROOQUI FIRDOUS; HANNA NAEEM B
权利人:BECKMAN INSTRUMENTS INC
摘要:Deoxyribonucleotide and ribonucleotide derivatives of the general formula I I wherein R1 represents -CR'R''-Ar, in which Ar is substituted aryl (as hereinafter defined) and R' and R'' are independently selected from the group consisting of hydrogen and lower alkyl; one of -R2 and R3 is a hydroxyl-protecting group and the other is a group suitable for synthesis of polynucleotides or for attachment of the nucleotide to a solid support; R4 is selected from the group consisting of hydrogen, -OH and protected hydroxyl; and B represents a divalent radical corresponding to a purine or pyrimidine base. When synthesis is carried out using these derivatives, the deprotection procedure is reduced to an essentially instantaneous process. The derivatives have acceptable shelf life and are very stable to conventional DNA synthesis conditions. Particularly preferred are those compounds wherein Ar is mono- and dihalo-substituted phenyl.

专利号:US-6423877-B1
优先权日:1999-11-15
标题:Synthesis of pseudopterosin compounds
发明人：COREY ELIAS J
权利人:HARVARD COLLEGE
摘要:The present invention is directed to a new synthetic route to pseudopterosin aglycone (3): n a key intermediate for the synthesis of a group of antiinflammatory natural products including pseudopterosin A (1) and E (2). The pathway of synthesis starts with the abundant and inexpensive (S)-(−)-limonene and its long-known cyclic hydroboration product (4) and leads to the chiral hydroxy ketone (6). Conversion of (6) to (10) followed by a novel aromatic annulation produced (15) which underwent highly diastereoselective cyclization to afford the protected pseudopterosin aglycone (16). The naturally occurring pseudopterosins such as (1) and (2) are readily available from this key intermediate.

专利号:US-7122501-B2
优先权日:2000-06-01
标题:Catalyst and process for the direct synthesis of hydrogen peroxide
发明人：PAPARATTO GIUSEPPE; D ALOISIO RINO; DE ALBERTI GIORDANO; BUZZONI ROBERTO
权利人:ENICHEM SPA
摘要:A description follows of a bimetallic catalyst, obtained by dispersing in sequence and alternating the precursors of the single metal components of the catalyst on a carrier, and a process for the synthesis of hydrogen peroxide by the direct reaction of hydrogen with oxygen, in a solvent medium containing a halogenated promoter and an acid promoter, in the presence of said catalyst.

专利号:US-8907104-B2
优先权日:2006-10-11
标 题 :Synthesis of enone intermediate
发明人：MYERS ANDREW G; BRUBAKER JASON D
权利人:HARVARD COLLEGE
摘要:The tetracycline class of antibiotics has played a major role in the treatment of infectious diseases for the past 50 years. However, the increased use of the tetracyclines in human and veterinary medicine has led to resistance among many organisms previously susceptible to tetracycline antibiotics. The recent development of a modular synthesis of tetracycline analogs through a chiral enone intermediate has allowed for the efficient synthesis of novel tetracycline analogs never prepared before. The present invention provides a more efficient route for preparing the enone intermediate.

专利号:US-4284582-A
优先权日:1978-04-28
标 题 :Process for the preparation of cyclopropane derivatives, intermediates in the synthesis of pyrethroid insecticides
发明人：KAYE ALBERT E; TUCKER ALAN C
权利人:ICI LTD
摘要:Compounds of formula: wherein both groups X are chlorine, bromine or trifluoromethyl, or one X is chlorine or bromine and the other is trifluoromethyl, and Y is -CN or -COOR in which R is an alkyl group, are obtained by (A) reacting a compound of the formula: wherein X1 is chlorine or bromine, with a compound of the formula: X2C=CH-CH=C(CH3)2 in the presence of metallic copper or at least one copper salt and a base, or (B) reacting a compound of the formula: Y-CH2-CN with a compound of the formula: X2C=CH-CH=C(CH3)2 and chlorine or bromine, in the presence of at least one reducible copper salt and a base, or (C) reacting a compound of formula: X-CH2-CN with a compound of the formula: wherein X1 is chlorine or bromine, in the presence of at least one copper salt. The compounds are intermediates in the synthesis of pyrethroid insecticides.