CONSTITUTION:In the presence of a catalyst of high polymer having a functional group containing a hetero atom, a sulfone group-containing or carboxyl group- containing compound such as acrylic acid, lauric acid, stearic acid, etc. is reacted with preferably stoichiometric amount of phosgene based ...
sup.1 and R.sup.2 has a tertiary structure, or R.sup.1 and R.sup.2 together with the nitrogen atom form a 5- to 10-membered ring, where at least one of the carbon atoms adjacent to the nitrogen is a tertiary carbon atom. Good yields of the acid chloride and low trichloroethylene...
A process for the preparation of a sulfonic acid chloride of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are identical or different and denote hydrogen, a lower alkyl or cycloalkyl radical, halogen, aryl, aralkyl, aryl-ether or one of the radicals ##STR2## or wh...
acid and acryloyl chloride by addin g reactant and distilling resultant continuousely,the demand of inhabitor could be decreased,so as to increase the yield and purity of the product.When the mole ratio of acrylic acid and phosphorous oxychloride is 1∶1,the yield of acryloy l chloride is ...
Preparation of N-Oleoyl-L-glutamic Acid The oleoyl chloride was prepared by the reaction of phosphorus trichloride and oleic acid. Then the objective product N-oleoyl-L-glutamic acid was synthesi... Z Yang,LJ Jiang - 《Fine & Specialty Chemicals》 被引量: 1发表: 2007年 Compounds of L-glu...
First, N-y-chloropropylpentafluoropropion- amide (Sa) and N-y-chloropropylheptafluoro- butyramide (8b) were prepared respectively by direct condensations of the corresponding acid chlorides with chloropropylammonium chloride in the presence of triethylamine. Al- though N-y-chloropropylperfluorooctanam...
Herein, we propose a new approach to convert N-acetylglucosamine (NAG) and chitin to 3A5AF using biobased deep eutectic solvents (DESs) containing choline chloride and various organic acids or polyols. A comparison of catalytic capacity showed that a DES made with choline chloride/citric acid (...
disiloxane (represented by trimethylsilanol) has strong acidity, and due to its existence, it is impossible to synthesize siloxane molecules with the expected structure; chloride ions can enhance the corrosion effect and thus greatly The most obvious effect is the chloride ion in the acid cleaning ...
Methyl mercaptan to the material, the continuous reaction of chlorine in aqueous hydrochloric acid, hydrogen chloride gas produced by the reaction the material to produce turbulence in the reactants by the rising film reactor (tubular heat exchanger) and the whole mixed reactors a mixing flow mode...
Process for the preparation of 5-aryl-2,3-dihydro-2,2(or 3,3)dimethyl-5h-imidazo (2,1-a)isoindol-5-ols and 2(4,4(or 5,5)dimethyl-2-imidazolin-2-yl)benzophenone acid addition salts 来自 Google Patents 喜欢 0 阅读量: 12