CAS: 79-29-8; 2,3-Dimethylbutane

上下游产品

CAS号563-79-1 2,3-二甲基-2-丁烯 | CAS号110-54-3 正己烷 | CAS号513-81-5 2,3-二甲基-1,3-丁二烯 | CAS号3638-35-5 Cyclopropane, (... | CAS号67-56-1 甲醇 | CAS号1516-68-3 diethyl azido p... | CAS号78-78-4 异戊烷 | CAS号76-09-5 频哪醇 | CAS号464-07-3 3,3-二甲基-2-丁醇 | CAS号115-11-7 2-甲基丙烯 | CAS号354-96-1 PERFLUORO(2,3-D... | CAS号355-04-4 2-三氟甲基-1,1,1,2,... | CAS号1805-22-7 全氟甲基环戊烷 | CAS号112156-74-8 1,1,1,2,2,4,4,4... | CAS号865-71-4 1,1,1,2,2,3,4,4... | CAS号565-59-3 2,3-二甲基戊烷 | CAS号464-06-2 2,2,3-三甲基丁烷 | CAS号80945-06-8 N-(1,1,2-trimet... | CAS号55-21-0 苯甲酰胺 | CAS号80945-05-7 N-(2,3-dimethyl...

甘露醇置于氢碘酸体系中,化学反应生成 2,3-二甲基丁烷
参考文献:Bouchardat,Annales De Chimie (Cachan,France),1875,Vol. <5> 6,P. 105,128
标题:Bouchardat,Annales De Chimie (Cachan,France),1875,Vol. <5> 6,P. 105,128

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:WO-2013138200-A1
优先权日:2012-03-13
标 题 :Green chemistry synthesis of the malaria drug amodiaquine and analogs thereof
发明人：FORTUNAK JOSEPH MARIAN; KULKARNI AMOL ANANT; KING CHRISTOPHER
权利人:UNIV HOWARD
摘要:Methods are provided for a green chemistry one-pot synthesis of amodiaquine and amodiaquine analogs. The methods have a lower environmental impact, lower investment cost, reduced amounts of byproducts and impurities, and a shorter synthesis time, compared to current conventional synthesis methods. The methods reduce the total number of steps in the synthesis from four to five down to two, thereby simplifying production; and allow a reduced number of solvents and reagents to be used in production, thereby reducing the waste generated in the synthesis. The methods can reduce the waste to about 3-5 kilograms of waste generated per kilogram of product produced; and surprisingly improve the overall yield from 60-65% to greater than 90% as compared to the current conventional synthesis methods for amodiaquine and its analogs.

专利号:US-7973171-B2
优先权日:2005-06-13
标题:Process for synthesis of dialkoxyorganoboranes
发明人：BURKHARDT ELIZABETH; ATKINS WILLIAM
权利人:BURKHARDT ELIZABETH; ATKINS WILLIAM
摘要:The invention relates to a process for the synthesis of dialkoxyorganoboranes, in particular to a process for the synthesis of dialkoxyorganoboranes by an ester exchange reaction. Moreover, the invention relates to a process for the synthesis of organo-oxazaborolidine catalysts (organo-CBS) and of trialkylboroxins. Furthermore, the invention relates to methods of using dialkoxyorganoboranes for the preparation of organo-CBS catalysts and in Suzuki-type coupling reactions.

专利号:US-6048975-A
优先权日:1991-09-12
标 题:Process for the chemical synthesis of oligonucleotides
发明人：PFLEIDERER WOLFGANG; BERGMANN FRANK
权利人:HOECHST AG
摘要:A process for the chemical synthesis of oligonucleotides n Use of a dansylethoxycarbonyl group as base-labile 5'-hydroxyl protective group in the chemical synthesis of DNA and RNA and suitable synthetic processes. n The ease of detection of the dansyl protective group and the ease of elimination from the sugar residue of the nucleotide without side reactions make oligonucleotide synthesis possible with high yields in very small quantities.

专利号:US-2022219156-A1
优先权日:2019-04-29
标题:Catalyst for the catalytic synthesis of urea
发明人：GLOTZBACH CHRISTOPH; TENHUMBERG NILS; EL HAWARY TAREK; MAKHYNYA YEVGENY; LEITNER WALTER; KLANKERMAYER JÃœRGEN; SCHUMACHER HANNAH
权利人:THYSSENKRUPP IND SOLUTIONS AG; THYSSENKRUPP AG
摘要:A ruthenium-phosphine complex can be used as a catalyst in a method for the catalytic synthesis of urea. The method may comprise more particularly a reaction of formamide or of formamide with ammonia in the presence of the catalyst to form urea and hydrogen. Through the use of the ruthenium-phosphine complex as the catalyst, catalytic preparation of urea from formamide or from formamide with ammonia is provided for the first time. This allows for synthesis under mild conditions and virtually no formation of byproducts. Further, using an acid as a cocatalyst in the catalytic synthesis or the reaction can lead to an improvement in urea yield.

专利号:US-2006287520-A1
优先权日:2005-05-16
标 题 :Synthesis of salinosporamide A and analogues thereof
发明人：DANISHEFSKY SAMUEL J; ENDO ATSUSHI
权利人:DANISHEFSKY SAMUEL J; ENDO ATSUSHI
摘要:A novel synthesis of salinosporamide A is provided. Salinospoamide A as well as structurally related natural products, omuralide and lactacystin, have been shown to be proteasome inhibitors. Therefore, these compounds as well as analogues of these natural products may be useful in the treatment of proliferative diseases such as cancer, autoimmune diseases, diabetic retinopathy, etc. The invention provides for the synthesis of salinosporamide A as well as analogs thereof using a convenient point for derivatization of the bicyclic core. Pharmaceutical compositions and method of using the inventive compounds are also provided.