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Synthesis of 3‐aminoalkyl‐2‐arylaminoquiazolin‐4(3 H )‐ones and 3,3′‐disubstituted bis‐2‐arylaminoquinazolin‐4(3 H )‐ones via reactions of 1‐aryl‐3‐(2‐ethoxycarbonylphenyl)carbodiimides with diamines by Xu‐Hong Yang; Ming‐Hu Wu; Shao‐Fa Sun; Jia‐Li Xie; Ming‐Wu Ding; Qing‐Hua Xia is a Chemistry article available to read on EtoBox.

What is Synthesis of 3‐aminoalkyl‐2‐arylaminoquiazolin‐4(3 H )‐ones and 3,3′‐disubstituted bis‐2‐arylaminoquinazolin‐4(3 H )‐ones via reactions of 1‐aryl‐3‐(2‐ethoxycarbonylphenyl)carbodiimides with diamines about?

## Abstract magnified image 1‐Aryl‐3‐(2‐ethoxycarbonylphenyl)carbodiimides **2**, obtained from aza‐Wittig reactions of iminophosphorane **1** with aryl isocyanates, reacted with primary diamines in 1:1 and 2:1 molar ratio under mild conditions to give selectively the regioisomers 3‐aminoalkyl‐2‐arylaminoquinazolin‐4(3__H__)‐ones **3** and 3,3′‐disubstituted bis‐2‐arylaminoquinazolin‐4(3__H__)‐ones **4** in good yields, respectively. To fully characterize the regioselectivity of aza‐Wittig reactions of 1‐aryl‐3‐(2‐ethoxycarbonylphenyl)carbo‐diimides with primary diamines, crystals of **4e** were obtained, and its structure was determined by X‐ray crystallography.

Who reads Synthesis of 3‐aminoalkyl‐2‐arylaminoquiazolin‐4(3 H )‐ones and 3,3′‐disubstituted bis‐2‐arylaminoquinazolin‐4(3 H )‐ones via reactions of 1‐aryl‐3‐(2‐ethoxycarbonylphenyl)carbodiimides with diamines?

Author

Xu‐Hong Yang; Ming‐Hu Wu; Shao‐Fa Sun; Jia‐Li Xie; Ming‐Wu Ding; Qing‐Hua Xia

Publisher

Journal of Heterocyclic Chemistry; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley; FASEB (ISSN 0022-152X)

Published

2008

Language

EN

Field

Chemistry (Physical Sciences)