Recent advances in the chemistry and applications of high oxidation state alkylidene complexes. Technical report No. 24
Technical Report
·
OSTI ID:128146
Alkylidene complexes of the type Mo(CH-t-Bu)(NAr)(OR)2 (Ar = 2,6- diisopropylphenyl; OR = O-t-Bu, OCMe2(CF3), OCMe(CF3)2, etc.) can be prepared in wide variety. In some cases they will react with strained cyclic olefins to give living polymers from which the organic polymer can be cleaved upon treatment with an aldehyde. Chiral catalysts have been prepared that will polymerize norbornenes and norbornadienes stereoselectively to give all cis isotactic polymers. Molybdenum catalysts also have been found that will cyclopolymerize dipropargyl derivatives and polymerize certain acetylenes to give polyenes in a living manner. Recent applications are reviewed.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Chemistry
- OSTI ID:
- 128146
- Report Number(s):
- AD-A--295725/6/XAB; CNN: Contract N00014-92-J-1433
- Country of Publication:
- United States
- Language:
- English
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