P. Quadrelli et al., NITROSOCARBONYL INTERMEDIATES AS SUPER-ENOPHILES - A MILD METHOD FOR CARBON-NITROGEN BOND FORMATION, Tetrahedron letters, 39(20), 1998, pp. 3233-3236
Nitrosocarbonyl intermediates, generated at r.t. by the mild oxidation
of nitrile oxides, undergo clean ene reactions with tetramethyl-and t
rimethyl-ethylene and with cyclohexene. With less substituted ethylene
s the ene pathway is still active but the oxidation step of the nitril
e oxides competes with the cycloadditions to the olefins. (C) 1998 Els
evier Science Ltd. All rights reserved.