ISSN:
1434-1948
Keywords:
Phosphaalkynes
;
Cooligomerization
;
Phosphaalkyne cyclooligomers
;
Cage compounds, phosphorus-carbon-aluminum
;
Cage compounds, phosphorus-carbon-gallium
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
When trialkylaluminum reagents 2 bearing sterically demanding substituents are allowed to react with phosphaalkynes 1 a highly selective phosphaalkyne cyclotrimerization with incorporation of one organometal unit occurs (→ 5a-d). The resulting triphosphaalatricycloheptenes 5 are able to function as ligands in transition metal complexes (→ 6a,b), as illustrated by the reactions of 5a with nonacarbonyldiiron or the pentacarbonyltungsten tetrahydrofuran complex. When triethylgallium (7) is allowed to react with phosphaalkynes 1, tricyclic phosphorus-carbon-gallium compounds are generated (→ 8a,b).
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
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