CAS: 3229-00-3; Pentaerythrityltetrabromide

相似化合物

5434-27-5 28148-04-1 630-17-1

上下游产品

Pentaerythritol 3,3-bis(bromomethyl)oxetane pentaerythritol tetratosylate Pentaerythrityl benzenesulfonatetetramethyl pentaerythritol p-tolyloxy-2,2-bis-p-tolyloxymethyl-propane1,3-bis-p-tolyloxy-2,2-bis-p-tolyloxymethyl-propane tetrakis[(4-nitrophenoxy)methyl]methane spiro[3.3]heptane-2,6-dicarboxylic acid

📜季戊四醇置于三溴化磷体系中,化学反应生成 乙醇-2-氯碳酸酯(2:1)
参考文献:Tetrakis-Sulfoxides As Phase Transfer Catalysts
标题:Tetrakis-Sulfoxides As Phase Transfer Catalysts
摘要:四烷基亚磺酰基甲烷在与几种亲核试剂进行n-辛基溴的sn2型取代反应中,作为高效的相转移催化剂.
DOI:10.1246/cl.1981.1293

专利信息

专利号:US-3994972-A
优先权日:1975-06-30
标题:Synthesis of N,N',N',N''-tetra-salicylidene pentaerythrityl tetramine
发明人：SEELY MICHAEL J; PETERSON THOMAS C
权利人:HORIZONS INC
摘要:An improved synthesis of N,N',N',N''-tetra-salicylidene pentaerythrityl tetramine via pentaerythrityl benzene or toluene sulfonates.

专利号:WO-2024088910-A1
优先权日:2022-10-24
标 题 :Process for the preparation of a gadolinium contrast agent
发明人：HOG DANIEL; LONGERICH MARKUS; JACOBS TIA; GRUBE STEFAN; PLATZEK JONANNES; TERWILLIGER DANIEL WILLIAM; EBHARDT LASSE; BOEDDINGHAUS NICOLE; KUNELLIS JAN-CHRISTIAN; ULFERTS-HÄNEL ANITA; BALZER SANDRA; SCHIRMER HEIKO
权利人:BAYER AG
摘要:The present invention relates to a process for the preparation of a gadolinium chelate compound of formula (I) or its stereoisomers, tautomers, N-oxides, hydrates, solvates, or salts thereof, or mixtures of same. Further, the present invention relates to crystalline forms of the gadolinium chelate of formula (I), to a process for the preparation of said crystalline forms as well as to intermediate compounds in the synthesis of the gadolinium chelate compound of formula (I) and/or its crystalline forms as well as their stereoisomers, tautomers, N-oxides, hydrates, solvates, or salts thereof, or mixtures of same.

专利号:US-7687635-B2
优先权日:2002-01-22
标 题:Metal complexes useful in metathesis and other reactions
发明人：VERPOORT FRANCIS WALTER CORNELIUS; DE CLERCQ BOB
权利人:TELENE S A S
摘要:This invention provides metal complexes being useful as catalyst components in metathesis reactions and in reactions involving the transfer of an atom or group to an ethylenically or acetylenically unsaturated compound or another reactive substrate and, with respect to a sub-class thereof, for the polymerisation of α-olefins and optionally conjugated dienes, with high activity at moderate tempera-tures. It also provides methods for obtaining polymers with very narrow molecular weight distribution by means of a living reaction. It also provides methods for making said metal complexes and novel intermediates involved in such methods. It further provides derivatives of said metal complexes which are suitable for covalent bonding to a carrier, the product of such covalent bonding being useful as a supported catalyst for heterogeneous catalytic reactions. It also provides a direct one-step synthesis of pyrrole, furan and thiophene compounds from diallyl compounds.

专利号:CN-119569521-A
优先权日:2024-11-27
标 题:A method for in-situ synthesis of p-tert-butyltoluene from by-product isobutylene

专利号:US-2007185343-A1
优先权日:2004-02-26
标 题 :Metal complexes for use in olefin metathesis and atom group transfer reactions
发明人：VERPOORT FRANCIS WALTER C; DROZDZAK RENATA A; LEDOUX NELE; ALLAERT BART F
权利人:UNIV GENT
摘要:Improved catalysts useful in a number of organic synthesis reactions such as olefin metathesis and atom or group transfer reactions are made by bringing into contact a multi-coordinated metal complex comprising a multidentate Schiff base ligand, and one or more other ligands, with an acid under conditions such that said acid is able to at least partly cleave a bond between the metal and the multidentate Schiff base ligand of said metal complex, optionally through intermediate protonation of said Schiff base ligand.

专利号:EP-1577282-B1
优先权日:2004-02-26
标 题:Metal complexes for use in olefin metathesis and atom or group transfer reactions
发明人：VERPOORT FRANCIS WALTER CORNELIUS; DROZDZAK RENATA ANNA; LEDOUX NELE; ALLAERT BART FILIP
权利人:TELENE SAS
摘要:Improved catalysts useful in a number of organic synthesis reactions such as olefin metathesis and atom or group transfer reactions are made by bringing into contact a multi-coordinated metal complex comprising a multidentate Schiff base ligand, and one or more other ligands, with an acid under conditions such that said acid is able to at least partly cleave a bond between the metal and the multidentate Schiff base ligand of said metal complex, optionally through intermediate protonation of said Schiff base ligand.