ISSN:
1434-193X
Keywords:
Phosphoris ylides
;
Iminophosphoranes
;
Phosphorus heterocycles
;
Rearrangements
;
Diazaphosphaazulene
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
1,2-Dihydro-1,3,2-diazaphosphinine 2 reacts with acetylene-dicarboxylic acid esters to give chemoselectively the adducts 5 or 6a, b, depending on the reaction conditions. Compound 6a is alternatively synthesized by treatment of equimolecular amounts of the previously described monoadduct 3(3′) and dimethyl acetylenedicarboxylate. A reaction pathway is proposed based primarily on i) the isolation and characterization of intermediate 8(8′) and ii) the reactivity of 3(3′) towards electrophiles, in particular with tetracyanoethylene (compound 10).
Type of Medium:
Electronic Resource
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