3422-07-9Relevant academic research and scientific papers
REACTIONS OF CYCLOPROPENES WITH DIAZOMETHANE IN THE PRESENCE OF PALLADIUM COMPOUNDS
Lukin, K. A.,Zefirov, N. S.
, p. 242 - 246 (2007/10/02)
The reaction of cyclopropenes with diazomethane in the presence of palladium acetate leads to bicyclobutane isomerization products, to olefins containing 1,4-pentadiene fragments, and to the oligomers of cyclopropenes.The predominating reaction path is determined by the degree of substitution of the double bond.
REACTIONS OF DIAZOALKANES WITH UNSATURATED COMPOUNDS. 6. CATALYTIC CYCLOPROPANATION OF UNSATURATED HYDROCARBONS AND THEIR DERIVATIVES WITH DIAZOMETHANE
Dzhemilev, U. M.,Dokichev, V. A.,Sultanov, S. Z.,Khusnutdinov, R. I.,Tomilov, Yu. V.,et al.
, p. 1707 - 1714 (2007/10/02)
A systematic study has been conducted of the catalytic reaction of diazomethane with cyclic and polycyclic unsaturated hydrocarbons, conjugated dienes, as well as with a series of functionalized unsaturated conpounds.The feasibility of using transition metal, nontransition metal, and rare earth metal compounds of, for example, Co, Ni, Zr, Rh, and Dy, has been demonstrated for the first time.It has also been established that Pd(acac)2 has very high activity as a catalyst for the cyclopropanation of terminal and endocyclic double bonds by diazomethane, and that its activity is reduced upon the introduction of n-donor ligands or in the presence of strong polar solvents.
ACYLATION OF 1-METHYL-1-VINYL- AND 1-METHYL-1-ISOPROPENYLCYCLOPROPANE WITH ACYL FLUOROBORATES
Pomytkin, I. A.,Balenkova, E. S.,Anfilogova, S. N.
, p. 465 - 468 (2007/10/02)
Acylation of 1-methyl-1-vinyl- and 1-methyl-1-isopropenylcyclopropane with acetyl and pivaloyl chlorides is accompanied by rearrangement of the three-membered ring to a four-membered ring with the subsequent formation of a five-membered oxonium salt.Treatment of the latter with various nucleophiles leads to previously unknown derivatives of the cyclobutane series.
