General formula (i) below new turpentine(Poly)alkoxyalkyl terpene ethers (I) are new. (Poly)alkoxyalkyl terpene ethers of formula (I) are new; m = 2-5; A = 2-5C alkylene; R = H; 1-4 C alkyl (optionally substituted by 5-12 C cycloalkyl, 7-12 C bicycloalkyl or 8-11 C ...
摘要: Describes the synthesis of alpha-acetoxy ethers from esters by DIBALH reduction and acetylation. In situ trapping of diisobutylaluminum alkoxides of hemiacetals; Regioselective cleavage of the alpha-acetoxy ethers.被引量: 36 年份: 1996 ...
This invention concerns certain new mixed ethers having the general formula, R-O-CH(R") CnH2n-O-R' wherein R and R' are different aromatic radicals, one of them being a neutral radical of the xenane, i. e. diphenyl, series, and R" is hydrogen or an alkyl radical. Such ethers ar...
17beta-O-Alkyl ethers (methyl, ethyl, propyl, butyl, hexyl, and octyl) of estradiol were obtained from 3-O-benzyl-17beta-estradiol with sodium hydride/alky... 被引量: 0发表: 0年 14,17beta-ETHANO-14beta-ESTRATRIENES AND ESTRATETRAENES, PROCESS FOR THEIR MANUFACTURE AND PHARMACEUTICAL PRE...
This invention relates to new chemical compounds and more particularly to new eliphatic trihydric alcohol ethers characterized by the substitution of an al...mercury) was the secondary butyl ether of glycidol of the formula 25 o ClH--CH--0CHr-- --i CH> This novel compound has a specific ...
(7) 4.0% v/v (max) methanol will be permitted until end of 2022 9.2 9.2.1 Les seuls composés oxygénés autorisés sont les mono-alcools The only oxygenates permitted are paraffinic mono-alcohols and paraffiniques et les mono-éthers paraffiniques (de 5 atomes de paraffinic mono-ethers ...
This invention relates to certain new unsaturated aromatic ethers, and in particular concerns allyl-type ethers of dihydroxy-diphenyls having the general formula CH=C-cH-o O-CH-C=CH _ _ B -- R" R' R R R' re s h , l r wherein R represents hydrogen, lower alkyl, or 10 aryl, R...
Polyacrylonitrile (PAN) is an addition polymer with the struc- ture shown here. Draw the structure of the monomer. Select textbook and university Improve your experience by picking them 0:59 minutes Problem74Tro - 4th Edition Textbook Question...
8) Method according to one of claims 1 to 7 claim 1, wherein, the solvent has at least one compound chosen from the glycols, ethers, glycol ethers, alcohols, sulfolane, N-methylpyrrolidone, propylene carbonate, ionic liquids, amines, alkanolamines, amino acids, amides, ureas, phosphates, car...
Substituted alkoxy-or alkylthiochlorotriazines wherein the substituents on the alkoxy groups are chlorine, bromine or dialkylphosphato are useful as capping agents for polyphenylene ethers. The capped