Synthesis of 4-hydroxyquinoline-2,3-dicarboxylates using N-(2-aminobenzoyl)benzotriazoles
作者:İlhami Çelik、Fatoş Yıldız
DOI:10.1016/j.tet.2017.05.058
日期:2017.7
A method for the preparation of 4-hydroxyquinoline-2,3-dicarboxylates has been developed by aza-Michael addition reaction of N-(2-aminobenzoyl)benzotriazoles with dimethyl acetylenedicarboxylate. 4-Hydroxyquinoline-2,3-dicarboxylates were obtained in moderate to good yields (53–87%).
One-pot synthesis of quinazolin-4(3H)-ones and2,3-dihydroquinazolin-4(1H)-ones utilizingN-(2-aminobenzoyl)benzotriazoles
作者:İlbilge Merve ŞENOL、İlhami ÇELİK、İlker AVAN
DOI:10.3906/kim-1906-50
日期:——
A convenient and efficient method has emerged for the one-pot synthesis of substitutedquinazolin-4(3$H)$-ones and nonaromatic alkaloids. 2-Substituted quinazolin-4(3H)-ones, 2,3-disubstituted quinazolin-4(3$H)$-ones, and 2,3-dihydroquinazolin-4(1$H)$-ones were obtained at yields of 46% to 95% by a one-pot reaction of $N$-(2-aminobenzoyl) benzotriazoles with amines and orthoesters or aldehydes under
一种方便,有效的方法已经出现,用于一锅合成取代的喹唑啉-4(3 $ H)$-one和非芳族生物碱。获得了2-取代的喹唑啉-4(3H)-一,2,3-二取代喹唑啉-4(3 $ H)$-一和2,3-二氢喹唑啉-4(1H)$-一。 $ N $-(2-氨基苯甲酰基)苯并三唑与胺和原酸酯或醛在无催化剂的条件下进行一锅反应,可将其提高到46%至95%。
N-(2-Aminobenzoyl)benzotriazole Mediated Synthesis of 3- Acyl-2-alkyl(aryl)-4-hydroxyquinolines and 3-Acylamino-4(3H) quinazolinones
New methods have been developed for the synthesis of the substituted quinolines and quinazolinones derivatives by utilizing N-(2-aminobenzoyl)benzotriazoles under mild reaction conditions. 3-Acyl-2-alkyl(aryl)-4-hydroxyquinolines were obtained in modarete yields by the reaction of N-(2-aminobenzoyl)benzotriazoles and diketones in the presence of tert-BuOK. 3-Acylamino-4(3H) quinazolinones were obtained
A Simple, Mild, and Practical Method for the Esterification and Thioesterification of Anthranilic Acid Utilizing N-(2-Aminobenzoyl)benzotriazole
作者:İlhami Çelik、Şule Kökten
DOI:10.1055/s-0033-1339469
日期:——
A convenient and efficient method for the preparation of anthranilic esters and anthranilic thioesters has been developed by the treatment of N-(2-aminobenzoyl)benzotriazoles with alcohols and thiols in the presence of 4-(dimethylamino)pyridine (DMAP).