Reaction of Acetic Anhydride with Monoterpene Amine Oxides Possessing the 2,7-Dimethyloctane SkeletonUnder the conditions of the Polonovsky reaction, N-(2,7-dimethyl-2,7-octadienyl)-N,N-dimethylamine oxide gives 2,7-dimethyl-2,7-octadienal and N-(2,7-dimethyl-2,7-octadienyl)-N-...
Acetylation of 6-hydroxy-2-phenyl-5,6-dihydrothiazolo[3,2-b][1,2,4]triazole (63) with acetic anhydride and variable amounts of concentrated hydrochloric acid and variable reaction times occurs with concomitant ring opening and formation of either an N-acetyl derivative (97) of 3-(2-oxoethy...
acetic anhydride and benzaldehyde undergo condensation reaction to form cinnamic acid. Acetanhydride is used to make cellulose acetate, acetic acid plastic, non-combustible film film; in the pharmaceutical industry, it is used to make gimycin, furazol, dibazol, caffeine, aspirin, sulfa drugs, etc...
ChemInform Abstract: REACTIONS OF ENEAMINES. XV. MECHANISM OF THE REACTION OF AMINE N-OXIDES WITH ACETIC ANHYDRIDE, THE POLONOVSKI REACTIONother reactionsDie Reaktion des N-Oxids (I) mit Essigsureanhydrid wird untersucht.doi:10.1002/chin.197632145...
formation of diketene (boiling point 127.4 ℃) with a boiling point similar to that of acetic anhydride, ammonia is introduced at the outlet of the preheating decomposition tube, and cooled to about 0 ℃ by a cooler to separate the effluent and the acetic acid at the end of the reaction....
Reaction of a terpene alcohol with acetic anhydride in the presence of a high-boiling amine provides a terpene ester. 在高沸点胺的存在下萜醇与乙酸酐反应以提供萜烯酯。 ip.com 6. can be improved with xylanase pretreatment and acetic anhydride activation in bleaching process of wheat straw bio-ch...
Condensed cyclopropyl amine derivatives this yielding with aluminium chloride 6-trifluoromethyl-1-indanone; reduction of this with lithium aluminium hydride gives the 1-indanol, reaction with acetic anhydride giving the 1-acetoxyindane, from which on thermal decomposition is obtain... KAISER CARL,ZIRKLE...
17.Firstly, p-methylacetophenone was obtained in the presence of alchlor as the catalyst, and the optimum condition was 4:1:2 in molar ratio for toluene,aceticanhydride and alchlor with yield of 86.2%. 首先,以甲苯和乙 酐为原料,在催化剂三氯化铝存在下合成对甲基苯乙酮,并确定甲苯,乙 ...
Co-evaporate the reaction mixture with toluene to remove the remaining acetic anhydride, pyridine and acetic acid, dilute the syrupy mixture with ethyl acetate, and wash with 2 M HCl aq. (200 ml) and water. The aqueous layer should be washed once with ethyl acetate, and then wash the...
Potentially explosive reaction with 5azidotetrazole, bromine pentafluoride, chromium trioxide, hydrogen peroxide, potassium permanganate, sodium peroxide, and phosphorus trichloride. Potentially violent reactions with acetaldehyde and acetic anhydride. Ignites on contact with potassium tert-butoxide. Incompatible...