(Diosmacycloalkanes as models for the formation of hydrocarbons from surface methylenes)

Technical Report · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5340063

Norton, J R

We have developed a method for the preparation of CH{sub 3}CD(OTf){sub 2} and CD{sub 3}CD(OTf){sub 2}, and have used them for the preparation of Os{sub 2}(CO){sub 8}({mu}-CDCH{sub 3}) and Os{sub 2}(CO){sub 8}({mu}-CDCD{sub 3}). We have examined the mechanism of the extrusion of propene from a diosmacyclobutane. It is clear that the majority of the product is formed by the expected {beta} elimination. However, the formation of a significant amount of CH{sub 3}CD=CHD shows that, contrary to the conventional wisdom, some {alpha} elimination is occurring. We investigating the mechanism of olefin and acetylene exchange with diosmacyclobutanes. We have also discovered a novel allenyl Claisen'' rearrangement while exploring the reactions of an 1(3) reagent with triple bonds. Finally, we have learned that a side chain ether oxygen can control the regioselectivity with which the reagent adds to triple bonds. 2 refs.

• Research Organization: Colorado State Univ., Fort Collins, CO (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-84ER13299
• OSTI ID: 5340063
• Report Number(s): DOE/ER/13299-7; ON: DE91017854
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBONYLS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
DOCUMENT TYPES
KINETICS
NEUTRON DIFFRACTION
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OSMIUM COMPLEXES
PROGRESS REPORT
REACTION KINETICS
SCATTERING
SULFONATES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES