CAS: 5660-53-7; 1,3-Dioxolane-4-Methanol, 2-Methyl-2-(2-Methylpropyl)-

上下游产品

1,2-(Iso-Butylethylidene)-3-Trimethylsilylglycerol 16343-23-0

📜4-甲基-2-戊酮置于对甲苯磺酸一水合物,Sodium Carbonate体系中,用 正己烷,甘油,甲苯 作为反应溶剂,以90.1%的收率获得产物4-羟基甲基-2-异丁基-2-甲基-1,3-二氧戊环
参考文献:Glycerin Derivatives And Process For Producing The Same
标题:Glycerin Derivatives And Process For Producing The Same
摘要:公式(1A),(2A)和(3A)代表的甘油衍生物:其中r1A,R2A,R1B,R2B,R1C和r2C如披露中所定义,并公开了生产甘油衍生物的方法,包括甘油衍生物(1A),(2A)和(3A).这些甘油衍生物具有令人满意的物理性质,可用作润滑剂或极性油,并且与水有相互作用,可用作乳化剂或保湿剂.该方法使得可以从易于获得且经济可行的醛类或酮类高产率地合成甘油衍生物.

专利信息

专利号:US-5190867-A
优先权日:1986-05-08
标题:Process for the preparation of R-2,2-R1,R2 -1,3-dioxolane-4-methanol
发明人：BERTOLA MAURO A; MARX ARTHUR F; KOGER HEIN S; CLAASSEN VOLKERT P; PHILLIPS GARETH T
权利人:SHELL INTERNATIONAL PETROLEUM
摘要:Process for the preparation of R-2,2-R 1 ,R 2 -1,3-dioxolane-4-methanol wherein R 1 and R 2 are H or alkyl groups or wherein R 1 and R 2 together with the carbon atom to which they are attached form a carbocyclic ring by subjecting a mixture of R- and S-2,2-R 1 ,R 2 -1,3-dioxolane-4-methanol to the action of a micro-organism or substances derived therefrom having the ability for stereoselective consumption of S-2,2-R 1 ,R 2 -1,3-dioxolane-4-methanol preferably until at least 80 wt % and more preferably all the S-2,2-R 1 ,R 2 -1,3-dioxolane-4-methanol is consumed. Various micro-organisms of the genus Rhodococcus, Nocardia and Corynebacterium are disclosed as suitable for the purpose. The R-isomer is a valuable intermediate for stereospecific synthesis of various biologically active compounds including S-metoprolol.

专利号:EP-0244912-B1
优先权日:1986-05-08
标 题 :A process for the preparation of r and s-2,2-r1,r2-1,3-dioxolane-4-methanol
摘要:Process for the preparation of R-2,2-R1, R2-1,3-dioxolane-4-methanol wherein R1 and R2 are H or alkyl groups or wherein R1 and R2 together with the carbon atom to which they are attached form a carbocyclic ring by subjecting a mixture of R- and S-2,2-R1, R2-1,3-dioxolane-4-methanol to the action of a micro-organism or substances derived therefrom having the ability for stereoselective consumption of S-2,2-R1, R2-1,3-dioxolane-4-methanol preferably until at least 80 wt% and more preferably all the S-2,2-R1, R2-1,3-dioxolane-4-methanol is consumed. Various micro-organisms of the genus Rhodococcus, Nocardia and Corynebacterium are disclosed as suitable for the purpose. The R-isomer is a valuable intermediate for stereospecific synthesis of various biologically active compounds including S-metoprolol.

专利号:WO-2015051525-A1
优先权日:2013-10-11
标 题 :Synthesis of acetal/ketal
发明人：ZHOU WENJUAN; FANG LIN; CLACENS JEAN-MARC; BONNEVIOT LAURENT; DECAMPO FLORYAN
权利人:RHODIA OPERATIONS; CENTRE NAT RECH SCIENT; ECOLE NORMALE SUPERIEUR DE LYON ENSL
摘要:The present invention concerns a process for preparing cyclic acetal or ketal by reacting a carbonyl compound (a) with a polyol (b), wherein said carbonyl compound (a) and polyol (b) are forming a biphasic liquid system when mixed together, comprising at least the following steps: a) Producing a carbonyl compound (a) / polyol (b) emulsion by using as stabilizing species amphiphilic solid particles of nanometric dimension and optionally a catalyst X; b) Proceeding to the reaction to produce cyclic acetal or ketal, notably by setting temperature, and c) Isolating the resulting compounds.