Base promoted facile route to functionalized benzo[b][1,8]naphthyridin-2-(1H)-ones from N-benzyl-N-(3-cyanoquinolin-2-yl)acetamides
摘要:
A facile synthesis of 4-amino-N-benzylbenzo[b][1,8]naphthyridin-2(1H)-ones 3 is described from N-benzyl-N-(3-cyanoquinolin-2-yl)acetamides 2 with t-BuOK in excellent yields in mild conditions. These reactions proceeded at room temperature under aerobic atmosphere in very short period. The cyclization reactions were also extended with N-alkyl amino acetamide analogues affording the products in good yields. (C) 2014 Elsevier Ltd. All rights reserved.
An alternate route to the synthesis of imidazo[1,2-a]quinolines using I2-NaI reagent
作者:Shraddha Upadhyay、Atish Chandra、Seema Singh、Radhey M. Singh
DOI:10.1002/jhet.691
日期:2011.9
A new and a facile route to the synthesis of imidazo[1,2‐a]quinolines has been described via iodocyclization reaction of 2‐allylaminoquinoline derivatives using I2‐NaI reagent. J. Heterocyclic Chem., (2011).
Base promoted facile route to functionalized benzo[b][1,8]naphthyridin-2-(1H)-ones from N-benzyl-N-(3-cyanoquinolin-2-yl)acetamides
作者:Durgesh Nandini、Mrityunjaya Asthana、Tanu Gupta、R.P. Singh、Radhey M. Singh
DOI:10.1016/j.tet.2014.09.059
日期:2014.11
A facile synthesis of 4-amino-N-benzylbenzo[b][1,8]naphthyridin-2(1H)-ones 3 is described from N-benzyl-N-(3-cyanoquinolin-2-yl)acetamides 2 with t-BuOK in excellent yields in mild conditions. These reactions proceeded at room temperature under aerobic atmosphere in very short period. The cyclization reactions were also extended with N-alkyl amino acetamide analogues affording the products in good yields. (C) 2014 Elsevier Ltd. All rights reserved.