15839-23-3Relevant academic research and scientific papers
Dipolar cyclization reactions in heterocyclic synthesis: A novel route to furanophanes
Eberbach,Laber
, p. 57 - 60 (2007/10/02)
The multistep transformation of 2,3-bridged butenynyl oxiranes 8 into furanophanes 12 involving bridgehead olefins 11 as key intermediates is described. The two lower members of 12 undergo rapid air oxidation resulting in the formation of the dienediones 14a,b. 14b is converted by base into the bicyclo[6.3.0]undecadienone 15.
THERMALLY INITIATED REACTIONS OF (Z)-EPOXYHEXENYNES A FACILE PREPARATION OF 3,4-ANNULATED FURANS
Eberbach, Wolfgang,Roser, Joachim
, p. 2221 - 2234 (2007/10/02)
An efficient and general access to 3,4-annulated 2-vinylfurans (type II) is provided by the thermally induced ring transformation of epoxyhexenynes (I).Depending on the substitution pattern the reactions proceed either by heating in solution (5a-h) or under short-time thermolysis conditions (6i, j).The results are consistent with a multistep mechanism involving 1-oxacyclohepta-3,4,6-trienes as central intermediates.
Alicyclic substituted oxazolidine-2,4-diones having hypoglycemic activity
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, (2008/06/13)
Hypoglycemic oxazolidine-2,4-diones, substituted at the 5-position with a (C5 -C9) unsaturated monocyclic, saturated bicyclic or unsaturated bicyclic hydrocarbon radical; methods for their preparation; and method for their use in the
Electrocyclization Rates for Some Donor-Acceptor-Substituted Trienes
Marvell, Elliot N.,Hilton, Charles,Cleary, Michael
, p. 4272 - 4275 (2007/10/02)
Three new trienes, ethyl 3-(2-vinylcyclohexenyl)-trans-propenoate (10), ethyl 3-(2-trans-styrylcyclohexenyl)-trans-propenoate (11), and ethyl 3--trans-propenoate (14), have been prepared and characterized.The kinetic
