ISSN:
1042-7163
Keywords:
Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Further studies have been conducted on the condensation of electron-rich arenes or heteroarenes with the dienic system of phosphole P-complexes. According to the X-ray crystal structure analysis of one of the resulting 2-aryl-3-phospholene P-complexes, the condensation takes place on the side of the diene opposite to the complexing group. The decomplexation of the phospholene P-Mo(CO)5 and P-W(CO)5 complexes, respectively, by reaction with sulfur or halogens and tertiary amines yields the corresponding P-sulfides and oxides with full retention of the stereochemistry at phosphorus. Double condensation of the phosphole P-complexes onto the 2 and 5 positions of thiophene and furan ultimately leads to phosphole-thiophene-phosphole and phosphole-furan-phosphole chains. The first type has been characterized by X-ray crystal structure analysis of its P,P-disulfide. No electronic delocalization appears to take place along the chain.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hc.520020305
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