Title of article
Direct one-step synthesis of azaheterocyclic phosphonates from diethyl ω-chloro-1-alkynylphosphonates and hydrazines
Author/Authors
Azab، نويسنده , , Abdullatif and Al Quntar، نويسنده , , Abed Al Aziz and Srebnik، نويسنده , , Morris، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2007
Pages
3
From page
3213
To page
3215
Abstract
Hydrazines react with 4-, 5- and 6-chloro-1-alkynylphosphonates to provide the corresponding azaheterocyclic phosphonates in good yields and purity. The suggested mechanism consists of initial addition to the carbon–carbon triple bond to generate a zwitterionic species in which the amine is situated trans to the lone pair of the anion.
Keywords
?-Chloro-1-alkynylphosphonates , Tetrahydropyridazinylmethylphosphonates , 5-Dihydropyrazolylmethylphosphonates , 4 , 6 , 4 , 7-Tetrahydrodiazepinylmethylphosphonates , Azaheterocyclic phosphonates , Hydrazines , 5
Journal title
Tetrahedron Letters
Serial Year
2007
Journal title
Tetrahedron Letters
Record number
1854875
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