CAS: 865-33-8; Potassium Methoxide

上下游产品

methanol potassium phenolate potassium 2-naphthoxide potassium 1-naphtholate3-methoxy-2-oxopropylidenetriphenylphosphorane 2-Methoxi-isophthalonitril 1,1-dimethoxy-2-phenyl-2-butene 2,4-dicyano-1-methoxybenzene

甲醇 在 氢化钾体系中,用 Petroleum Ether作为反应溶剂,获得 Potassium Methanolate
参考文献:一种低残留颗粒状醇钠或醇钾的制备方法
标题:一种低残留颗粒状醇钠或醇钾的制备方法
摘要:本发明提供了一种低残留颗粒状醇钠或醇钾的制备方法,该方法以钠或钾与醇为原料,与溶剂混合,在惰性气体保护下采用微波加热的方式进行反应,反应结束后在微波作用下脱除反应剩余的醇和溶剂,得到颗粒状醇钠,醇钾.所述的微波频率为2450+/-50Mhz.本发明的方法能够实现低溶剂残留醇钠,醇钾生产,所生成的醇钠,醇钾是大颗粒状固体,实现了从现有的粉末状产品向颗粒化产品的跨越,从而同时解决长期困扰人们的溶剂残留问题和使用安全隐患问题.

专利信息

专利号:US-11926589-B2
优先权日:2019-07-09
标 题 :Process for the synthesis of non-racemic cyclohexenes
发明人：REISMAN SARAH; ROMBOLA MICHAEL; LADD CAROLYN L; MCLAUGHLIN MARTIN JOHN; ZUEND STEPHAN; GOETZ ROLAND
权利人:BASF CORP; CALIFORNIA INST OF TECHN
摘要:This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation M m+ wherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R 10a , R 10b , R 10c , R 10d , R 10a′ , R 10b′ , R 10c′ , R 10d′ , Z and Z′ have the meanings as defined in the description.

专利号:US-8822702-B2
优先权日:2002-12-20
标 题 :Synthesis of amines and intermediates for the synthesis thereof
发明人：BERENS ULRICH; DOSENBACH OLIVER; SPRENGER DANIEL
权利人:BERENS ULRICH; DOSENBACH OLIVER; SPRENGER DANIEL; BASF SE
摘要:The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, n nor especially of amides of the formula II,n n nwherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.

专利号:US-8350031-B2
优先权日:2008-06-02
标 题:Processes for the synthesis of levocetirizine and intermediates for use therein
发明人：RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT
权利人:CIPLA LTD; RAO DHARMARAJ RAMACHANDRA; KANKAN RAJENDRA NARAYANRAO; GHAGARE MARUTI; CHIKHALIKAR SANDIP VASANT
摘要:The present invention provides a compound of formula (IV) n nwherein R is Cl, Br, NO 2 , OH or OR′, and R′ is alkyl, and its use in the synthesis of levocetirizine, including its use in the synthesis of (−)-1-[(4-chlorophenyl)-phenylmethyl]piperazine, an intermediate useful in the synthesis of levocetirizine. The present invention also provides compounds (II) and (III) which are useful in the synthesis of compound (IV).

专利号:US-2021107859-A1
优先权日:2018-04-06
标题 :A process for the synthesis of carbon labeled organic compounds
发明人：AUDISIO DAVIDE; CANTAT THIBAULT; DESTRO GIANLUCA
权利人:COMMISSARIAT ENERGIE ATOMIQUE
摘要:A process for the synthesis of a carbon labeled organic compound containing a carbon labeled carboxyl group is described. A method of using carbon labeled organic compounds containing a carbon labeled carboxyl group according to the present disclosure; a process for manufacturing labeled pharmaceuticals and agrochemicals comprising synthesis of carbon labeled organic compounds containing a carbon labeled carboxyl group according to the present disclosure; and a process for producing tracers comprising synthesis of carbon labeled organic compounds containing a carbon labeled carboxyl group according to the present disclosure are also described.

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-11542269-B2
优先权日:2018-01-03
标 题:Prins reaction and compounds useful in the synthesis of halichondrin macrolides and analogs thereof
发明人：CHOI HYEONG-WOOK; FANG FRANCIS G
权利人:EISAI R&D MAN CO LTD
摘要:The invention provides methods utilizing Prins reaction in the preparation of compounds that may be useful as intermediates in the synthesis of halichondrin macrolides and analogs thereof. The invention also provides compounds that may be useful as intermediates in the synthesis of a halichondrin macrolides and methods for preparing the same.