CAS: 3006-15-3; 1,4-Bis(Hexyloxy)-1,4-Dioxobutane-2-Sulfonic Acid, Sodium Salt

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CAS号16064-83-8 dihexyl maleate | CAS号111-27-3 正己醇 | CAS号15805-75-1 Butanedioic aci...

专利信息

专利号:WO-2014203045-A1
优先权日:2013-06-20
标 题:A novel, green and cost effective process for synthesis of tert-butyl (3r,5s)-6-oxo-3,5-dihydroxy-3,5-o-isopropylidene-hexanoate
发明人：ROY BHAIRABNATH; SINGH GIRIJ PAL; LATHI PIYUSH SURESH; AGRAWAL MANOJ KUNJABIHARI; MITRA RANGAN; TRIVEDI ANURAG; PISE VIJAY SADASHIV; RUPANWAR MANOJ
权利人:LUPIN LTD
摘要:The present invention provides a process of preparation of an intermediate useful for the preparation of statins more particularly the present invention relates to an eco-friendly and cost effective process for the preparation of tert -butyl (3R,5S)-6-oxo-3,5-dihydroxy- 3,5-O-isopropylidene-hexanoate [I].

专利号:US-2022355262-A1
优先权日:2019-07-22
标题 :System and method for manufacturing water-based hydrophobic aerogels and aerogel composites
发明人：SACHITHANADAM MAHESH; KHORASGANI SOGHRATI ELMIRA; NATARAJAN GAYATHRI
权利人:KROSSLINKER PTE LTD
摘要:Embodiments of the present invention provide users with a system and method for manufacturing water-based hydrophobic aerogels and aerogel composites. The system and method can be carried out in a manner which is more rapid than typical ways and can be readily scalable. The method of manufacture is useful for producing water based hydrophobic aerogels and aerogel composites on a large scale with good homogeneity and consistency. Advantageously, the method of manufacture also has the benefit of a shorter processing time due to the vacuum homogenizing and mixing processes, the use of microwave assisted vacuum freeze drying for ease of synthesis of water-based hydrophobic aerogels.

专利号:US-5208347-A
优先权日:1992-04-30
标题 :Process for the synthesis and recovery of tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)-phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide
发明人：PARKER DANE K; MUSLEVE RICHARD T
权利人:GOODYEAR TIRE & RUBBER
摘要:The present invention discloses a process for the preparation of tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide which is comprised of (1) reacting m-isopropenyl α,α-dimethylbenzylisocyanate with 2-pyrrolidinone at a temperature which is within the range of about 80° C. to about 150° C. to produce a molten reaction product; (2) mixing the molten reaction product with an aqueous emulsifier solution to form an aqueous medium, wherein the aqueous emulsifier solution contains from about 0.1 weight percent to about 10 weight percent emulsifier, and wherein the weight ratio of the molten reaction product to the emulsifier solution in the aqueous medium is within the range of 1:0.5 to 1:100; (3) allowing the tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide in the aqueous medium to crystallize under conditions of agitation into the form of essentially spherical particles; and (4) recovering the tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide particles from the aqueous medium by filtration.