合成这些 en particulier d'octadiene-1,5ol-3 和 undecatriene-1,5,8ol-3 a partir de la reaction desulfes allyliques avec des enaldehydes ou enones en存在 d'allyl-cerium
Titanocene induced regioselective deoxygenation of 2,3-epoxy alcohols: a new reaction for the synthesis of allylic alcohols
作者:J. S. Yadav、T. Shekharam、V. R. Gadgil
DOI:10.1039/c39900000843
日期:——
A new titanium(III) mediated [(C5H5)2TiCl] reduction of 2,3-epoxyalcohols to alk-1-en-3-ols is described.
描述了一种新的钛(III)介导的[(C 5 H 5)2 TiCl]将2,3-环氧醇还原为alk-1-en-3-ols的方法。
Synthesis of Deuterated Volatile Lipid Degradation Products To Be Used as Internal Standards in Isotope Dilution Assays. 2. Vinyl Ketones
作者:Jianming Lin、Dieter H. Welti、Francia Arce Vera、Laurent B. Fay、Imre Blank
DOI:10.1021/jf9902090
日期:1999.7.19
reference compound (Z)-1, 5-octadien-3-one (I) were prepared by improved synthesis procedures. Labeling position, chemical purity, and isotopic distribution of the compounds were characterized by various MS and NMR techniques. These molecules are used as internalstandards in quantification experiments based on isotope dilution assay. The newly prepared compound d-II was synthesized in a simple two-step
Marine oil is stabilized by treatment with silica in the presence or absence of carbon, vacuum steam deodorisation at a temperature between about 140° C and about 210° C in the presence of 0.1-0.4% deodorised rosemary or sage extract. If desired 0.01-0.03% ascorbyl palmitate and 0.05-0.2% mixed tocopherol can be added.
在有碳或无碳的情况下,用二氧化硅处理海洋油,在 0.1-0.4% 的脱臭迷迭香或鼠尾草提取物存在下,在约 140° C 至约 210° C 的温度下进行真空蒸汽脱臭,从而使海洋油稳定。如果需要,还可以添加 0.01-0.03% 的抗坏血酸棕榈酸酯和 0.05-0.2% 的混合生育酚。
Method for manufacturing aromatised plant material
申请人:Unilever PLC, A Company Registered In England And
Wales under company no. 41424 of Unilever House
公开号:EP2281463A1
公开(公告)日:2011-02-09
Disclosed is a method for manufacturing aromatised plant material, such as leaf tea. The method comprises: providing an homogenous mass of plant material; arranging the mass of plant material to extend from a first point (P1) to a second point (P2) distal from the first point, there being a gas-permeable path (P) connecting the first and second points; providing the plant material at the first point (P1) with an aroma composition comprising at least one aroma compound in an amount to form a concentration gradient of the at least one aroma compound along the gas permeable path (P); allowing the concentration gradient to evolve for a migration time (t); and dividing the mass along the path (P) into a plurality of fractions of aromatised plant material (1, 2, 3, 4), wherein at least two of the fractions differ in the concentration of the at least one aroma compound.