CAS: 3772-55-2; Dehydroabietadienol

上下游产品

dehydroabietic acid Methyl dehydroabietate dehydroabietic acid abietinol Dehydroabietinal (1R,4aS)-1-[(E)-2-(4-Chloro-benzenesulfonyl)-vinyl]-7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-°Ctahydro-phenanthrene C)-yl-(15)-ester)3.5-dinitro-benzoic acid-(13-isopropyl-pod°Carpatrien-(C)-yl-(15)-ester)

📜Dehydroabietic Acid Chloride置于吡啶,Lithium Aluminium Tetrahydride体系中,化学反应生成 脱氢枞醇
参考文献:脱氢松香酸聚氧乙烯衍生物的增溶,胶束化和相平衡
标题:脱氢松香酸聚氧乙烯衍生物的增溶,胶束化和相平衡
摘要:
DOI:10.1021/j100449A024

专利信息

专利号:US-4390342-A
优先权日:1980-04-01
标 题:Process for the preparation of solid composition of water-soluble dyes
发明人：BRUTTEL BEAT; PFENNINGER HEINZ
权利人:CIBA GEIGY CORP
摘要:A process for producing solid dye compositions, which process comprises passing an aqueous solution or suspension of at least one water-soluble crude dye, to effect separation of synthesis by-products having a molecular weight of below 500 and partial separation of water, through a semipermeable membrane, subsequently drying the resulting aqueous preparation which has become more highly concentrated, and optionally adding further additives before and/or after passage of the aqueous solution or suspension through the semipermeable membrane, these additives being added beforehand only when they do not become separated by the membrane. There are obtained by this process low-dust to dust-free compositions which are distinguished by high mechanical strength, high bulk density, free-flowing characteristics and good dissolving behavior. Employing these compositions it is possible to prepare low-foam to foam-free aqueous dye liquors having very good solution stability, even in the presence of electrolytes.