N-Acyl derivatives of anthranilic acid amide undergo intramolecular cyclization to imides on microwave irradiation or on melting, and their treatment with acetic anhydride in the presence of sodium acetate on heating yields quinazolin-4-ones.doi:10.1134/S1070428006030079L. A. Shemchuk...
+ HEAT The product N-acetyl anthranilic acid was synthesized through the reaction of anthranilic acid with acetic anhydride, which was hydrolyzed leading to the formation of the white crystalline product. The reaction of anthranilic acid with acetic anhydride lead to acetylation of the amino group. ...
n is 0 or 1; and m is 0 or an integer of 1 to 6. 6. A compound which is an anthranilic acid of formula (Ia): ##STR335## wherein R11 and R21, which may be the same or different, are each hydrogen or methoxy; R31 and R41, which may be the same or different, are each...
It is further to be noted that isomerization or rearrangement of the compounds (I) may occur by the effect of light, acid, base or the like, and the compounds obtained as the result of said isomerization or rearrangement are also included within the scope of the present invention. The compo...
Determination of salylic acid,syringic acid,benzoic acid and anthranilic acid in Radix Isatidis by HPCE 高效毛细管电泳同时测定板蓝根中水杨酸、丁香酸、苯甲酸和邻氨基苯甲酸 3. The halogen substituted anthranilic acid(1) was condensed with acetic anhydride to give halogen substituted 3 methyl 1H 2,4...
derived from a C1- 10 aliphatic, araliphatic or aromatic carboxylic acid, acid addition salts thereof, and their preparation by (a) reaction of a simple or mixed anhydride of a 5-dialkylsulphamyl-anthranili acid or an inner anhydride of an N-acyl-S-dialkylsulphamyl-anthranilic acid, i.e....
Oct. 26. 5-Amido 2-acetylamidobenzoic acid is produced by heating 5-nitro 2-amidobenzoic acid with glacial acetic acid and ace ic anhydride at 125 C. for six hours. and reducing the 5-nitro-2 acetylamidobenzoic acid thus formed bv means of zinc and acetic acid or by other reducing-...
5-Methyloxazolo-(3,2a)-1′,4′-dihydro-4′-quinolinone and traces of skatole are respectively formed when N-acetonylanthranilic acid is heated with acetic anhydride and with ethylene glycol.doi:10.1007/BF00853659S. I. Sav'yalovN. D. Zelinskii Institute of Organic Chemistry, Academy of ...
Rabilloud, Sillion - 1980 () Citation Context ...vatives are those based on preparation of an acid-amide intermediate that is cyclized by various cyclizing agents such as acetic anhydride [6,7], polyphosphoric acid [8] triphenyl phosphite, pyridine =-=[9]-=-, and cyanuric chloride [10,...
Rabilloud, Sillion - 1980 () Citation Context ...vatives are those based on preparation of an acid-amide intermediate that is cyclized by various cyclizing agents such as acetic anhydride [6,7], polyphosphoric acid [8] triphenyl phosphite, pyridine =-=[9]-=-, and cyanuric chloride [10,...