1431934-83-6Relevant articles and documents
Azirinium ylides from α-diazoketones and 2H-azirines on the route to 2H-1,4-oxazines: Three-membered ring opening vs 1,5-cyclization
Rostovskii, Nikolai V.,Novikov, Mikhail S.,Khlebnikov, Alexander F.,Starova, Galina L.,Avdontseva, Margarita S.
, p. 302 - 312 (2015)
Strained azirinium ylides derived from 2H-azirines and α-diazoketones under Rh(II)-catalysis can undergo either irreversible ring opening across the N-C2 bond to 2-azabuta-1,3-dienes that further cyclize to 2H-1,4-oxazines or reversibly undergo a 1,5-cycl
Rh(II)-carbenoid mediated 2H-azirine ring-expansion as a convenient route to non-fused photo- and thermochromic 2H-1,4-oxazines
Rostovskii, Nikolai V.,Novikov, Mikhail S.,Khlebnikov, Alexander F.,Khlebnikov, Vsevolod A.,Korneev, Sergei M.
, p. 4292 - 4301 (2013/06/27)
The Rh2(OAc)4-catalyzed domino reaction of 2H-azirines with 2-acyl-2-diazoacetates provides a unique synthetic approach to non-fused 2H-1,4-oxazines. The reaction proceeds via sequential formation of a rhodium carbenoid, an azirinium