CAS: 1806-29-7; 2,2-Biphenol

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CAS号95-56-7 2-溴苯酚 | CAS号1227735-80-9 6,6-diisopropyl... | CAS号1114567-49-5 2,2'-biphenol b... | CAS号132-64-9 氧芴 | CAS号89466-08-0 2-羟基苯硼酸 | CAS号533-58-4 2-碘苯酚 | CAS号32604-29-8 4,4'-二乙酰氧基联苯 | CAS号141778-90-7 2-methoxy-3-(2-... | CAS号141778-86-1 3-BROMO-2''-MET... | CAS号141778-89-4 3-bromo-2'-meth... | CAS号4877-93-4 2,2'-二甲氧基联苯 | CAS号132-64-9 氧芴 | CAS号92-52-4 联苯 | CAS号827-52-1 环己基苯 | CAS号90-43-7 2-苯基苯酚 | CAS号86-74-8 咔唑

二苯并呋喃置于吲哚,氢氧化钾体系中,化学反应生成2,2'-二羟基联苯
参考文献:Process For Producing O,O'-Dihydroxydiphenyl
标题:Process For Producing O,O'-Dihydroxydiphenyl

专利信息

专利号:US-12331007-B2
优先权日:2021-10-15
标题 :Use of a multidentate phosphite ligand in the catalytic synthesis of adiponitrile
发明人：CHEN ZHIRONG; WU WENBIN; YIN HONG; ZHA ZENGSHI; WANG KEYAN; MA LI; HUANG GUODONG; ZHOU GUIYANG; XU YONG
权利人:ZHEJIANG NHU CO LTD; ZHEJIANG NHU SPECIAL MAT CO LTD; ZHEJIANG NHU NYLON MAT CO LTD
摘要:A multidentate phosphite ligand is used in the catalytic synthesis of adiponitrile. The ligand is represented by the following general formula (I). The method of catalytic synthesis of adiponitrile comprises primary hydrocyanation, isomerization, and secondary hydrocyanation reactions, wherein the catalyst adopted each comprises a phosphite ligand-nickel complex composed of a nickel precursor and a multidentate phosphite ligand. The ligand molecule has a higher electron cloud density, and the phosphorus content capable of participating in coordination in the ligand molecule per unit mass is higher, so that the catalytic activity of the catalyst is improved, and the amount of the catalyst is reduced.

专利号:US-2017267706-A1
优先权日:2014-08-19
标 题:Method for the synthesis of heterocyclic hydrogen phosphine oxide
发明人：BRUYNEEL FREDERIC; NOTTE PATRICK PIERRE
权利人:STRAITMARK HOLDING AG
摘要:A method for the synthesis of a heterocyclic hydrogen phosphine oxide, having the general formula: n n n n n n n n n n wherein:n nR is a aliphatic or aromatic divalent group optionally including one or more heteroatoms and optionally having one or more substituents andn nX and Y are independently selected from —O—, —C(O)O— and —NR′—n nwherein R′ is a monovalent group optionally having one or more heteroatoms including the steps of:n na) forming a reaction mixture by mixing a compound having the general formula HX—R—YH and tetraphosphorus hexaoxide; andn nb) recovering the resulting compound comprising the heterocyclic hydrogen phosphine oxide.

专利号:US-6201101-B1
优先权日:1998-11-19
标 题:Catalyst and its use for the synthesis of polyol polyethers
发明人：TOZZOLA GABRIELLA; PO' RICCARDO; CARDI NICOLETTA
权利人:ENICHEM SPA
摘要:The present invention relates to a catalyst having general formula (I):wherein: M represents at least one cation of an element selected from earth-alkaline metals belonging to groups IIA, IIIA, VA, or transition metals belonging to groups IIB, IIIB, VB or VIIIB; n represents an integer between 0 and 2 and x is an integer between 2 and 5.The invention also relates to a process for the synthesis of polyol polyethers which uses a catalyst having general formula (I).

专利号:US-7098354-B2
优先权日:2002-10-25
标 题:Racemoselective synthesis of rac-diorganosilylbis(2-methylbenzo[e]indeyl)zirconium compounds
发明人：DAMRAU HANS-ROBERT; MUELLER PATRIK; GARCIA VALERIE; SIDOT CHRISTIAN; TELLIER CHRISTIAN; LELONG JEAN-FRANCOIS
权利人:BASELL POLYOLEFINE GMBH
摘要:The present invention relates to a specific process for the diastereoselective synthesis of rac-diorganosilylbis(2-methylbenzo[e]indenyl)zirconium compounds of the formula I, n nby reacting the silyl-bridged bisindenyl ligand with a dihalozirconium bis(3,5-di-tert-butylphenoxide)-base adduct to form the diorganosilylbis(2-methylbenzo[e]indenyl)zirconium bis(3,5-di-tert-butylphenoxide) and subsequently replacing the phenoxide groups by X using suitable replacement reagents to give the compound of the formula I; where the substituents X can be identical or different and are each F, Cl, Br, I or linear, cyclic or branched C 1-10 -alkyl; and the substituents R can be identical or different and are each linear, cyclic or branched C 1-10 -alkyl or C 6-10 -aryl; and also to the use of these compounds as catalysts.

专利号:US-8519197-B2
优先权日:2010-02-25
标题:Synthesis of magnolol and its analogue compounds
发明人：REDDY BASI V SUBBA; YADAV JHILLU S; SUBRAMANYAM RAVI
权利人:REDDY BASI V SUBBA; YADAV JHILLU S; SUBRAMANYAM RAVI; COLGATE PALMOLIVE CO; INDIAN INST OF CHEMICAL TECHNOLOGY
摘要:A method is described for producing magnolol, or a derivative or analogue thereof. The method includes obtaining MOM ether of 5,5′-diallylbiphenyl-2,2′-diol or a derivative or analogue thereof and subsequently converting the MOM ether of 5,5′-diallylbiphenyl-2,2′-diol into magnolol or a derivative or analogue thereof.

专利号:US-7348395-B2
优先权日:2003-12-15
标 题:Synthesis of oligomeric cyanate esters
发明人：KELLER TEDDY M; LASKOSKI MATTHEW
权利人:US NAVY
摘要:A cyanate ester system is disclosed. An aryl ether oligomer may be made from a dihydroxyaromatic compound and a dihaloaromatic compound in the presence of a base. The oligomer is then reacted with a cyanide compound in the presence of a base to form the cyanate ester shown below. The cyanate ester may then be cross-linked to a thermoset having triazine ring cross-links.n nHO—Ar 2 O—Ar 1 —O—Ar 2 n OH