Большое спасибо.
1.Michael A. Schmidta and Mohammad Movassaghi
Synthesis of optically active imidazopyridinium salts and the corresponding NHCs
Tetrahedron Letters Volume 48, Issue 1, 1 January 2007, Pages 101-104
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http://dx.doi.org/10.1016/j.tetlet.2006.10.157
Synthesis of carbamoylpyridine and imidazo[1,5-a]pyridin-1,3-diones via ortho-acetalhydantoin intermediates
Tetrahedron Letters
Volume 45, Issue 3, 12 January 2004, Pages 553-556
Код: Выделить всё
http://dx.doi.org/10.1016/j.tetlet.2003.10.200
Novel one pot synthesis of polysubstituted pyrazolo[1,5-a]- and
imidazo[1,2-a]pyrimidines
Tetrahedron Letters
Volume 47, Issue 15, 10 April 2006, Pages 2611-2614
Код: Выделить всё
http://dx.doi.org/10.1016/j.tetlet.2006.02.031
Spirally twisted imidazolium iminyl ylide structures from 1,2- rearrangements in reactions of imidazolium dicyanomethanide 1,3-dipoles with maleic anhydride: new perspectives on the Boekelheide–Fedoruk ring expansions
Tetrahedron Letters
Volume 47, Issue 34, 21 August 2006, Pages 6107-6111
Код: Выделить всё
http://dx.doi.org/10.1016/j.tetlet.2006.06.089