ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Phenylenebis(silandiyl triflates) - New Synthetic Building Blocks for Variously Structured Organosilicon PolymersOrtho-, meta-, and para-substituted phenylenebis(silandiyl triflates) are prepared as new useful building blocks for the synthesis of polymers with a regular alternating arrangement of an organosilicon unit and a π-electron system (phenylene or ethynylene) in the backbone. Such polymers can be used as photoresists, semiconducting materials or precursors of silicon carbide. The phenylenebis(silandiyl-triflates) 5a-c are obtained by protodesilylation of the corresponding (allylsilyl)- or [(diethylamino)silyl]benzenes 3a-c and 4a-c, respectively, with trifluoromethanesulfonic acid. Reactions with dinucleophiles like Li2C2 and Ph2Si(OH)2 lead to variously structured organosilicon polymers (see Eqns. 11 and 12), which are characterized by spectroscopic methods.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19940770409
