Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Ethyl 7-oxo-2,3-dihydro-777-pyrido

Ethyl 7-oxo-2,3-dihydro-7//-pyrido[l, 2,3-t/e]-1,4-benzothiazine-6-carbox-ylate was prepared by cyclization of diethyl (2,3-dihydro-4//-l,4-benzothia-zin-4-yl)methylenemalonate in PPA at 160°C for 1 h (99AP19). [Pg.295]

Cyclocondensation of 3,4-dihydro-2//-l,4-benzothiazines and diethyl ethoxymethylenemalonate in PPA at 120-160°C yielded ethyl 7-oxo-2,3-dihydro-7//-pyrido[l,2,3- fc]benzothiazine-6-carboxylates (97MI3,... [Pg.297]

See other pages where Ethyl 7-oxo-2,3-dihydro-777-pyrido is mentioned: [Pg.232]

See also in sourсe #XX -- [ Pg.2 , Pg.3 ]

SEARCH

3- -5-oxo-4,5-dihydro

7.9- Dihydro-6//-pyrido