50902-98-2Relevant articles and documents
Photochemistry of Cyclopropene Derivatives. 34. Photocycloaddition Reactions of 2-Alkenyl-Substituted Cyclopropenes
Padwa, Albert,Krumpe, Keith E.,Terry, Lenny W.,Wannamaker, M. Woods
, p. 1635 - 1642 (2007/10/02)
The sensitized irradiation of 2-(4-pentenyl)-substituted cyclopropenes produces tricyclo1,3>octanes by means of novel intramolecular cycloaddition.In dramatic contrast to the photochemical results, thermolysis affords a product co
Thermolysis of Vinyldiazomethanes as a Method for the Generation of Vinylcarbenes and a Comparison with Cyclopropene Photochemistry
Pincock, James A.,Mathur, Naresh C.
, p. 3699 - 3706 (2007/10/02)
The pyrolysis of the vinyldiazomethanes 6 (X = H), 8, 9, and 10 gives mixtures of 3H-pyrazoles and cyclopropenes.The kinetics and product distribution for each case lead to a determination of the rate of vinylcarbene formation and, therefore, a direct determination of the relative carbene stabilities.The conclusion is that carbene 14 is more stable than 15.These results are then used as a basis for a discussion of the carbenes generated from the singlet photochemistry of unsymmetrical cyclopropenes, 11.