Big Chemical Encyclopedia

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

Articles Figures Tables About

2-Chloro-3,4-dihydrothieno pyrimidines

Chloro-3,4-dihydrothieno[2,3- i ]pyrimidines (421) are prepared when the aromatic precursors 420 are treated with excess NBH over an 8-h period at room temperature. ... [Pg.67]

The action of NaBH4 on 141 (X = X = Cl) gave 2-chloro-3,4-dihydro-thieno[3,4-d]pyrimidines 142, which were used for the synthesis of 2-substituted dihydrothieno[3,4-d]pyrimidines via nucleophilic substitution reactions (81JMC376). [Pg.265]

See other pages where 2-Chloro-3,4-dihydrothieno pyrimidines is mentioned: [Pg.135]    [Pg.135]    [Pg.93]    [Pg.221]    [Pg.222]    [Pg.260]    [Pg.132]   
See also in sourсe #XX -- [ Pg.65 , Pg.66 , Pg.220 , Pg.248 , Pg.260 , Pg.265 , Pg.267 ]

See also in sourсe #XX -- [ Pg.65 , Pg.66 , Pg.220 , Pg.248 , Pg.260 , Pg.265 , Pg.267 ]



SEARCH



2-Chloro-3,4-dihydrothieno

4.5- Dihydrothieno

5.6- Dihydrothieno pyrimidine

Pyrimidine, 2-chloro

© 2024 chempedia.info