86598-05-2Relevant academic research and scientific papers
SELECTIVITY IN CYCLOADDITIONS-XII THE DIRECTIVE EFFECT OF ENOL ETHERS AND THIOENOL ETHERS IN CYCLOADDITIONS OF NITRILE OXIDES
Caramella, P.,Bandiera, T.,Gruenanger, P.,Albini, F. Marinone
, p. 441 - 453 (2007/10/02)
Cycloadditions of nitrile oxides to 2,3-dihydrofuran are highly regioselective whereas the regioselectivity of the cycloadditions to 2,3-dihydrothiophen is only moderate.The directing effect of oxygen and sulfur in these cycloadditions could be evaluated
SELECTIVITY IN CYCLOADDITIONS-X. REGIOCHEMISTRY OF CYCLOADDITIONS OF NITRILE OXIDES TO THIOPHENE AND BENZOTHIOPHENE 1,1-DIOXIDES
Albini, F. Marinone,Ceva, P.,Mascherpa, A.,Albini, E.,Caramella, P.
, p. 3629 - 3639 (2007/10/02)
Thiophene-1,1-dioxide undergoes regioselective cycloaddition to benzonitrile oxide.In the reaction with the less reactive mesitonitrile oxide the sulfur dioxide deriving from the dimerization of the dipolarophile causes a catalytic decomposition of the ni
