Author/Authors :
Butkovi?، نويسنده , , Kristina and Basari?، نويسنده , , Nikola and Lovrekovi?، نويسنده , , Kristijan and Marini?، نويسنده , , ?eljko and Vi?njevac، نويسنده , , Aleksandar and Koji?-Prodi?، نويسنده , , Biserka and ?indler-Kulyk، نويسنده , , Marija، نويسنده ,
Abstract :
New cis- and trans-3-aryl-4-[2-(2-vinylphenyl)ethenyl]sydnones 2, aryl = phenyl, p-tolyl were prepared and transformed on irradiation in the presence of acrolein to a pyrazoline derivative that aromatized during isolation to trans-1-tolyl-3-[2-(2-vinylphenyl)ethenyl]pyrazole 7 and trans-5-formyl-1-tolyl-3-[2-(2-vinylphenyl)ethenyl]pyrazole 8.
Keywords :
pyrazoles , photochemistry , sydnones , Nitrile imines , dipolar cycloaddition
