112632-81-2Relevant academic research and scientific papers
Unexpected C-N bond formation via Smiles rearrangement: One pot synthesis of N -arylated coumarin/pyran derivatives
Kumar, K. Shiva,Ramulu, Meesa Siddi,Kumar, N. Praveen
, p. 11276 - 11279 (2018)
A conceptually new and one-pot method for the synthesis of N-arylated coumarin/pyran derivatives via Smiles rearrangement. The reaction of 4-bromocoumarin/pyran with 2-amino phenols affords O-arylated coumarin/pyran which subsequently rearranges into N-arylated coumarin/pyran under mild reaction conditions in good yields.
SYNTHESIS OF A NEW BENZOPYRANOBENZOXAZINE RING SYSTEM
Mulay, Balbhim D.,Kelkar, Shriniwas L.,Wadia, Murzban S.
, p. 535 - 542 (2007/10/02)
The complex of N,N-diethyl,o-nitrophenoxy acetamide and POCl3 on reaction with substituted salicylaldehydes yielded 3-(o-nitrophenoxy)coumarins.These coumarins on reduction with hydrazine hydrate and Raney Nickel yielded benzopyranobenzoxazines through a
