CAS: 623-25-6; 1,4-Bis(Chloromethyl)Benzene

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CAS号50-00-0 甲醛 | CAS号71-43-2 苯 | CAS号106-42-3 对二甲苯 | CAS号10362-03-5 1,4-Phenylenedi... | CAS号100-44-7 氯化苄 | CAS号108-88-3 甲苯 | CAS号542-88-1 二氯甲基醚 | CAS号589-29-7 对苯二甲醇 | CAS号104-82-5 对甲基氯苄 | CAS号128-09-6 N-氯代丁二酰亚胺 | CAS号1953-55-5 p-Xylene-.alpha... | CAS号283-80-7 [2,2,2]-paracyc... | CAS号283-81-8 [24]paracyclophane | CAS号538-39-6 1,2-二对甲苯基乙烷 | CAS号2962-72-3 1,4-bis[2-(4-me... | CAS号23602-85-9 1,2-Benzenedica... | CAS号25596-72-9 Diethyl (4-chlo... | CAS号30362-89-1 Benzene,1,4-bis... | CAS号61895-53-2 2-[[4-(chlorome... | CAS号30391-55-0 1H-Isoindole-1,...

对苯二甲醇置于n-甲基吡咯烷酮,苯磺酰氯体系中,用 1,2-二氯乙烷 作为反应溶剂,化学反应 1.5H,以90%的收率获得产物1,4-对二氯苄
参考文献:Nmp 介导的脂肪醇氯化与芳基磺酰氯用于合成烷基氯
标题:Nmp 介导的脂肪醇氯化与芳基磺酰氯用于合成烷基氯
摘要:摘要 Nmp 介导的脂肪醇氯化已被开发用于合成烷基氯.这种简便,高效和实用的方法使用简单易得的芳基磺酰氯作为氯化试剂,在温和的条件和广泛的底物范围内以非常好到优异的收率构建 C-Cl 键.图形概要
DOI:10.1080/00397911.2018.1482498

专利信息

专利号:US-11034664-B1
优先权日:2020-05-11
标题 :Synthesis of cyclic carbonate monomers
发明人：PARK NATHANIEL H; HEDRICK JAMES L; PIUNOVA VICTORIA A; ARRECHEA PEDRO; ERDMANN TIM
权利人:IBM
摘要:Techniques regarding the synthesis of cyclic carbonate monomers are provided. For example, one or more embodiments described herein can comprise a method, which can include cyclizing a functionalized diol monomer with N,N′-carbonyldiimidazole, wherein the cyclizing produces a cyclic carbonate monomer and an imidazole carbamate. The method can also include activating the imidazole carbamate with an acid, wherein the activating promotes cyclization of the imidazole carbamate into the cyclic carbonate monomer.

专利号:US-4365094-A
优先权日:1979-12-28
标 题 :Process for the synthesis of tertiary phosphine oxides, and new tertiary phosphine oxides
发明人：BOILEAU SYLVIE L; N GUYEN THANH-DUNG; GAUTIER JEAN-CLAUDE C
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:The invention relates to the synthesis of tertiary phosphine oxides and also to certain tertiary phosphine oxides. According to the invention, an organic phase containing a halogenomethyl derivative, a secondary phosphine oxide and a phase transfer catalyst in an organic medium is reacted with an aqueous phase containing an inorganic base. The halogenomethyl derivative can be a micromolecule or a macromolecule. The tertiary phosphine oxides are substances which are useful, in particular, in fireproofing, in hydrometallurgy and in the field of plant health.

专利号:US-4565896-A
优先权日:1984-10-22
标 题 :Process for low pressure synthesis of ethylene glycol from synthesis gas
发明人：KNIFTON JOHN F; DURANLEAU ROGER G
权利人:TEXACO INC
摘要:This invention relates to the manufacture of ethylene glcyol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus formaldehyde in the presence of a homogeneous liquid catalyst containing an effective amount of cobalt-containing compound and a silicon or germanium-containing promoter and a solvent at a temperature of at least 50 DEG C. and a pressure of at least 500 psi wherein said ethylene glycol product separates as a separate liquid phase from the solvent.

专利号:US-4568780-A
优先权日:1984-10-22
标 题 :Process for low pressure synthesis of ethylene glycol from synthesis gas plus 1,3-dioxolane
发明人：KNIFTON JOHN F
权利人:TEXACO INC
摘要:This invention relates to the manufacture of ethylene glycol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus 1,3-dioxolane in the presence of a homogenous liquid catalyst containing an effective amount of cobalt-containing compound and a silane or germane-containing promoter dispersed in a hydrocarbon solvent at a temperature of at least 50 DEG C. and a pressure of at least 500 psi, where the particular solvents used allow the desired product to be separated from the reaction mixture by phase separation.

专利号:US-7189864-B2
优先权日:1990-11-19
标 题:Method of preparing intermediates useful in synthesis of retroviral protease inhibitors
发明人：NG JOHN S; PRZYBYLA CLAIRE A; MUELLER RICHARD A; VAZQUEZ MICHAEL L; GETMAN DANIEL P
权利人:SEARLE & CO
摘要:A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide from a chiral alpha amino aldehyde.

专利号:US-8034966-B1
优先权日:2008-02-20
标 题:Phenoxyisobutyric acid compounds and methods for synthesis
发明人：LALEZARI IRAJ; FABRICANT JILL
权利人:CELL VIABLE CORP
摘要:The present invention provides a process for the synthesis of substituted arylureidophenoxymethylpropionic acid and related compounds including bifunctional and tetrafunctional derivatives. The compounds are useful for inhibiting the formation of AGEs (Aminaglycation end products).