Synthesis of 4(3 H )‐quinazolinones from derivatives of methyl 2‐isothiocyanatobenzoate
1982; Wiley; Volume: 19; Issue: 5 Linguagem: Inglês
10.1002/jhet.5570190527
ISSN1943-5193
AutoresWilliam Dean, E. P. Papadopoulos,
Tópico(s)Phenothiazines and Benzothiazines Synthesis and Activities
ResumoAbstract Ethyl N ‐(2‐methoxycarbonylphenyl)thiocarbamate ( 2), N ‐(2‐ethoxycarbonylphenyl)‐4‐methoxythiobenz‐amide ( 3b ), and 2‐(4‐methoxyphenyl)‐4 H ‐3,1‐benzothiazin‐4‐one ( 4a ), react with nucleophilic reagents containing at least one primary amino group to yield a variety of 2‐substituted and 2,4‐disubstituted 4(3 H )quinazolinones, as well as some tricyclic and tetracyclic products.
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