ISSN:
0009-2940
Keywords:
Molybdenum oxadiene complex
;
Cycloaddition
;
Catalysis
;
Stereoselectivity
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The pentacyclic unsaturated ketone 3 is obtained as the sole product by the reaction of pinocarvone (1) with cycloocta-triene in the presence of catalytic amounts of dicarbonyl-bis(η4-pinocarvone)molybdenum (2). Compound 3 formally resulting from a [4 + 2] cycloaddition reaction of bicy-clo[4.2.0]octa-2,4-diene with the alkene fragment of pinocarvone was characterised by means of spectroscopy (1H, 13CNMR, IR, MS) as well as by X-ray crystal structure analysis. A mechanism is proposed involving rigid molybdenum complexes as intermediates in order to explain the stereospecificity of the reaction.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19951280917
