CAS: 3970-21-6; 2-Methoxyethoxymethyl Chloride

相似化合物

24991-55-7 40510-88-1 156384-38-2

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CAS号7719-09-7 氧氯化硫 | CAS号4431-83-8 双(2-甲氧基乙氧基)甲烷 | CAS号50-00-0 甲醛 | CAS号109-86-4 乙二醇甲醚 | CAS号110-88-3 三聚甲醛 | CAS号104575-17-9 4-(2-methoxyeth... | CAS号106673-30-7 methyl 8-(2-met... | CAS号4431-83-8 双(2-甲氧基乙氧基)甲烷 | CAS号542-88-1 二氯甲基醚 | CAS号74-87-3 氯甲烷 | CAS号115-10-6 二甲醚 | CAS号107-30-2 氯甲基甲醚 | CAS号107-06-2 1,2-二氯乙烷 | CAS号111-44-4 二氯乙基醚 | CAS号147643-41-2 10-(2-methoxyet...

氯化亚砜,双(2-甲氧基乙氧基)甲烷置于二氧化硫体系中,用70%的收率获得2-甲氧基乙氧基甲基氯
参考文献:Process For The Preparation Of Halogenated Ethers
标题:Process For The Preparation Of Halogenated Ethers
摘要:该发明涉及一种制备式i的化合物的过程 其中r是单取代或双取代的较低烷基,取代基选自卤素和较低烷氧基,但需注意这些取代基不出现在将基团r连接到式i分子的其余部分的碳原子上; R₁是氢,较低烷基,苯或苯-较低烷基;X是氯或溴;包括将式ii的缩醛与至少一种式r₂-X的化合物反应,其中r₂是氢或x-So,在最后一种情况下,反应混合物必须含有n,N-二较低烷基-较低烷酰胺的催化有效量,并且x与式i的化合物相对应.式i的化合物是有用的中间体,适用于合成药用或杀真菌化合物.

专利信息

专利号:US-4174345-A
优先权日:1978-08-01
标题:Synthesis of steroids
发明人：KAISER EMIL T
权利人:KAISER EMIL T
摘要:In the synthesis of sterols wherein methoxyethoxymethyl groups in an ether linkage are attached to the nucleus of the sterol to protect the sterol nucleus during other steps of the synthesis and the sterols are thereafter treated to remove the methoxyethoxymethyl groups and set free the hydroxyl groups, the improvement in which the sterols being treated with zinc bromide are held in a methylene chloride solution containing a small amount of an aliphatic alcohol having from 1 to 6 carbon atoms.

专利号:US-4354972-A
优先权日:1981-06-29
标 题 :Synthesis of steroids
发明人：KAISER EMIL T
权利人:KAISER EMIL T
摘要:This invention relates to the synthesis of steroids which are useful for their biological activity or which may be converted to steroids which have such activity. These syntheses include the steroid compounds and processes for their preparation. n An object of the invention is to provide syntheses which are applicable to materials which are readily available in good supply for converting such materials to steroids which are useful and desirable in the manufacture of pharmaceutical products. n More particularly, I have sought to discover processes and intermediate compounds useful in the synthesis of 24, 25-dihydroxycholesterol from hyodeoxycholic acid or lithocholic acid which are constituents of, and readily available from, animal bile.

专利号:US-4217279-A
优先权日:1978-12-18
标 题 :Synthesis of steroids
发明人：KAISER EMIL T
权利人:KAISER EMIL T
摘要:The synthesis of 25-hydroxycholesterol and 1α,25-dihydroxycholesterol in which the sterol nucleus of an ester of hyodeoxycholic acid is stabilized by protection of the 3 and 6α-hydroxyl groups with alkyl groups, alkyl ether groups, preferably with the 3β-methoxyethoxymethyl group or with the heterocyclic 2-tetrahydropyran group, then extending the chain from the carbon at the 24-position to a cyanide group at the 25-position and then subjecting the sterol so formed to a series of reactions by which it is transformed into 1α,25-dihydroxycholesterol or by a modified series of reactions to 25-hydroxycholesterol.

专利号:US-4895939-A
优先权日:1986-02-24
标题:High percentage β-yield synthesis of carbapenem intermediates
发明人：MARTEL ALAIN; DARIS JEAN-PAUL; CORBEIL JACQUES
权利人:BRISTOL MYERS CO
摘要:Disclosed herein is a novel high beta -yield producing novel intermediates of the formula where R4 is useful in the synthesis of 1- beta -alkyl carbapenems.

专利号:US-4410711-A
优先权日:1981-06-29
标题 :Method for the synthesis of lepiochlorin, an antibiotic
发明人：MCMORRIS TREVOR C; DONAUBAUER JOHN R
权利人:UNIV CALIFORNIA
摘要:A method for the synthesis of lepiochlorin, an antibiotic.

专利号:US-9611255-B2
优先权日:2015-06-10
标题 :Process for total synthesis of flavonoid compounds and isomers thereof
发明人：RAO BATCHU VENKATESWARA; LINGAMURTHY MACHA; RAJU Gurrapu; SARMA VANKA UMAMAHESWARA
权利人:COUNCIL SCIENT IND RES; COUNCIL SCIENT IND RES
摘要:The present invention relates to the a process for total synthesis of flavonoid compounds of general formula I and isomers thereof n nwherein R 1 and R 2 is OH; R 3 â•?H orn n n n n n n n n n n The present invention particularly relates to the process for preparation and separation of (2S,3S)-taxifolin-6-C-β-D-glucopyranoside (ulmoside A), (2R,3R)-taxifolin-6-C-β-D-glucopyranoside and taxifolin.