Title of article :
Efficient synthesis of benzopyrano[2,3-b]pyridines by sequential reactions of 1,3-bis-silyl enol ethers with 3-cyanobenzopyrylium triflates
Author/Authors :
Langer، نويسنده , , Peter W.U. Appel، نويسنده , , Bettina، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2003
Abstract :
Benzopyrano[2,3-b]pyridines were efficiently prepared by condensation of 1,3-bis-silyl enol ethers with 3-cyanobenzopyrylium triflates and subsequent domino ‘retro-Michael–lactonization–aldol’ reactions.
Keywords :
Silyl enol ethers , cyclizations , domino reactions , Pyrylium salts , pyridines
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
