Method for the preparation of acetyl chlorideThis invention relates to a method for preparing acetyl chloride by reacting 1,1-dichloroethane with chlorine and oxygen under the irradiation of light.KOBAYASHIKATUHIROKONNOKOJI
ChemInform Abstract: PREPARATION OF POLYSILOXANES FROM SILICIC ACID. IV. THE PREPARATION OF ACETYLATED SILICIC ACID BY THE REACTION OF SILICIC ACID WITH ACETYL CHLORIDEorgano‐silicon compounds, acyclic O,N,S derivativesNo abstract is available for this article.doi:10.1002/chin.198404218...
7 - Acetyl - 1,1,3,4,4,6 - hexamethyl - 1,2,3,4 -tetrahydronaphthalene is obtained by reacting the basic hydrocarbon (see Division C5) with acetyl chloride. In an example the acetylation is effected in the presence of aluminium chloride in ethylene dichloride at 20-22 DEG C. The pro...
A novel method for the preparation of unsymmetrical bis (di- and trisulfides) via trityl sulfenyl chlorides: Precursors for cyclic polysulfides When triphenylmethanesulfenyl chloride 6 [(C6H5)3CSCl] and its thio homologue 7 [(C6H5)3CSSCl] were treated with dithiols, unsymmetrical bis(di- and...
Successive treatment of (Z)-(2-aminothiazol-4-yl) -2-methoxyiminoacetic acid, 1, with 0.9 to 1.0 equiv. of hydrogen chloride and 1.04 equiv. (chloromethylene) dimethylammonium chloride provides (Z) - (2-aminothiazol-4-yl) -2-methoxyiminoacetyl-chloride hydrochloride, 3, in high yield.doi...
Preparation method of L-(-)-ephedrine chloride and d-(+)-pseudoephedrine hydrochloride The invention relates to a method for preparing L-(-)-ephedrine chloride and d-(+)-pseudoephedrine hydrochloride by taking alpha-bromophenyl ethyl ketone a......
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...
A novel method for the preparation of N-acylchitosan fiber and N-acylchitosan-cellulose fiber is described. Each aqueous solution of sodium N-acetyl and N-... S Hirano,T Midorikawa - 《Biomaterials》 被引量: 181发表: 1998年 Method for the conversion of cephalomannine to taxol and for the...
PURPOSE:To obtain the titled compound useful as an anticallicrein agent in high yield, by reacting a specific compound with ethyl p-hydroxybenzoate in the presence or absence of a condensing agent, and reducing the resultant ethyl p-(epsilon-nitroguanidinohexanyloxy)benzoate. CONSTITUTION:epsilon-...
4-Chloro-4-alkoxy-1,1,1-trifluoro-2-butanone, their preparation, and for the preparation of 4-alkoxy-1,1,1-trifluoro-3-buten-2-one their use of 4-Chloro-4-alkoxy-1,1,1-trifluoro-2-butanone, prepared by reacting the alkyl vinyl ether and a trifluoroacetyl chloride, 4-alkoxy-1,1...