3725-23-3Relevant academic research and scientific papers
STRAINED CYCLOALKENYNES
Meier, Herbert,Hanold, Norbert,Molz, Thomas,Bissinger, Hans Joachim,Kolshorn, Heinz,Zountsas, Johannes
, p. 1711 - 1720 (2007/10/02)
Presently known strained cycloalkynes with one, two or three additional cis- or trans-configurated double bonds are summarized in Table 3.The main topics of the article are the geometrical ring strain, the preparation or in situ generation of these compounds by fragmentation of the corresponding 1,2,3-selendiazoles, and the thermal isomerisation processes performed at room temperature or in flash pyrolysis experiments at 440-640 deg C.
Carbene Rearrangements, XI. Bicyclooct-2-en-7-ylidene
Brinker, Udo H.,Koenig, Lothar
, p. 894 - 910 (2007/10/02)
Three reactions are operative in bicyclooct-2-en-7-ylidene (6) generated by flash pyrolysis of the dry sodium salt of the corresponding tosylhydrazone.Cyclobutylidene-methylenecyclopropane rearrangement leads to bicycloocta-1,3-diene (18).A
Chemistry of 2-Carbenabicyclooctadiene
Freeman, Peter K.,Swenson, Karl E.
, p. 2033 - 2039 (2007/10/02)
Pyrolytic decomposition of the lithium or potassium salt of the tosylhydrazone of bicycloocta-3,6-dien-2-one (11) or photolysis of the lithium salt of 11 results in the formation of bicycloocta-2,6-diene (12), tricyclo2,7>oct-3-ene (13), tetracyclo2,8.04,6>octane (14), semibullvalene (15), 5-ethynyl-1,3-cyclohexadiene (16), and endo-6-ethynylbicyclohex-2-ene (17).The formation of the C8H8 fraction (15-17) is ascribed to insertion and rearrangement reactions of singlet 2-carbenabicyclooctadiene, whereas the formation ofthe C8H10 fraction (12-14) appears to be the result of hydrogen abstraction reactions of the corresponding triplet carbene or closely related species.
TRANSFORMATIONS OF HYDROCARBONS OF BICYCLOHEPTANE SERIES WHEN TREATED WITH POTASSIUM tert-BUTOXIDE AND DIMSYL IN DIMETHYL SULFOXIDE
Mil'vitskaya, E. M.,Babushkina, O. Ya.,Ranneva, Yu. I.,Shapiro, I. O.,Luzikov, Yu. N.,et al.
, p. 1243 - 1246 (2007/10/02)
Bicycloheptane when treated with potassium tert-butoxide and dimsyl in DMSO remains unchanged.Its unsaturated derivatives in these solutions isomerize either with opening of the small ring or with a shift of the double bond in the six-membered ring.In the case of 7-methylenebicyclo-2-heptene an unusual rearrangement was observed, with the formation of tricyclo4,6>-2-octene.
