Regioselective synthesis of N
<sub>(3)</sub>
‐ and O‐acylmethyl derivatives of 2‐methylthio‐4(3
<i>H</i>
)‐quinazolinone
作者:Milda M. Burbuliene、Rita Mazeikaite、Povilas Vainilavicius
DOI:10.1002/jhet.5570450250
日期:2008.3
Abstractmagnified imageReaction of 2‐methylthio‐4(3H)‐quinazolinone with chloroacetone, ω‐bromoacetophenone or ethyl bromoacetate in different solvents (methanol, acetonitrile, dimethylformamide and toluene) using sodium methoxide or potassium carbonate as a base were studied. Regioselective N(3)‐alkylation took place in toluene using potassium carbonate, whereas in dimethylformamide O‐acylmethyl derivatives were obtained. However chloroacetone reacted with 2‐methylthio‐4(3H)‐quinazolinone under various conditions to give a mixture of N(3)/O‐isomers.
SINHA, S. K. P.;KUMAR, PRASHANT, INDIAN J. CHEM. B , 28,(1989) N, C. 274-276
作者:SINHA, S. K. P.、KUMAR, PRASHANT
DOI:——
日期:——
Sinha, S. K. P.; Kumar, Prashant, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1989, vol. 28, p. 274 - 276