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2005
Fused pyrimidine derivatives
R 0515
An Efficient Synthesis of Quinazoline Derivatives with the Aid of Low-Valent
Reagent. — The novel reductive reaction between the neighboring nitro
33- 171 Titanium
group and N-H bond in imidazoles (I) and (XI), benzyl amines (IV), benzamides (VI)
and (VIII), and ortho esters (II) and carbonyl compounds (IX) and (XII) is promoted
by the TiCl4/Zn system yielding the corresponding quinazoline derivatives. Easily
accessible starting materials, convenient manipulation and moderate to high yields
make this procedure advantageous. — (SHI*, D.; SHI, C.; WANG, J.; RONG, L.;
ZHUANG, Q.; WANG, X.; J. Heterocycl. Chem. 42 (2005) 2, 173-183; Key Lab.
Biotechnol. Med. Plant, Dep. Chem., Xuzhou Norm. Univ., Xuzhou 221009,
Peop. Rep. China; Eng.) — H. Hoennerscheid
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