ISSN:
0009-2940
Keywords:
Nucleophilic behaviour of DBU
;
Polyheterocycle
;
Diphosphete
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
DBU - Not Simply a Strong Base: A One-Pot Synthesis of a Polycyclic Framework Consisting of a Diphosphete Central Unit and Two Units of Doubly Deprotonated DBUTwo condensed five-, six- and seven-membered rings are fused in a spirocyclic fashion with a central four-membered diphosphete ring in 4, which unexpectedly is formed in a simple two-component-one-pot reaction from Cl2P-CH(SiMe3)2 and DBU. The latter is doubly deprotonated and acts as a bridge via C-6 and N-8 to a P-P unit. The polyheterocycle 4 crystallizes in two modifications, whose molecular structures are almost identical.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19951280919