TY - JOUR T1 - Alum catalyzed convenient synthesis of quino [2,3-b][1,5]benzoxazepine alpha-aminophosphonate derivatives JF - Bulletin of the Korean Chemical Society Y1 - 2009 A1 - Sonar, Swapnil S. A1 - Sadaphal, Sandip A. A1 - Shitole, Nana N. A1 - Jogdand, Nivrutti R. A1 - Shingate, Bapurao B. A1 - Shingare, Murlidhar S. KW - 5]benzoxazepine KW - alpha-Aminophosphonate KW - Alum KW - Quino[2.3-b][1 KW - Solvent-free KW - Triethyl phosphite AB -

We have described an efficient synthesis of quino[2,3-b][1,5]benzoxazepine alpha-aminophosphonate derivatives by the nucleophilic addition of triethyl phosphite to substituted quino[2,3-b][1,5]benzoxazepines promoted by easily available, inexpensive and mild catalyst KAl(SO(4))(2)center dot 12H(2)O (alum). The reactions proceed smoothly at room temperature under solvent-free reaction conditions and providing high yield of product in very short reaction time.

PB - KOREAN CHEMICAL SOC CY - 635-4 YEOGSAM-DONG, KANGNAM-GU, SEOUL 135-703, SOUTH KOREA VL - 30 IS - 8 U3 - Foreign U4 - 0.871 ER -