Title of article
Symmetrical spiro-phosphoroheterocycles from the selenation of carbohydrazides
Author/Authors
Hua، نويسنده , , Guoxiong and Cordes، نويسنده , , David B. and Li، نويسنده , , Yang and Slawin، نويسنده , , Alexandra M.Z. and Derek Woollins، نويسنده , , J.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2011
Pages
4
From page
3311
To page
3314
Abstract
2,4-Bis(phenyl)-1,3-diselenadiphosphetane-2,4-diselenide (Woollins’ reagent) reacts with benzoic hydrazides in refluxing toluene to give new symmetrical spiro heterocycles in 48–76% isolated yields. However, under identical conditions, treating Woollins’ reagent with thiophene-2-carbohydrazide leads to an additional product, 1,3,4-selenadiazole (27% yield) together with the spiro phosphorus heterocycle in 44% yield. Three representative X-ray structures are reported.
Keywords
X-ray structure , spiro compounds , Phosphorus , Selenium , heterocycle , Woollins’ Reagent
Journal title
Tetrahedron Letters
Serial Year
2011
Journal title
Tetrahedron Letters
Record number
1878590
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