2272-61-9Relevant academic research and scientific papers
Improved and practical procedures for the preparation of highly substituted pyridines and pyridazines via silica-mediated aromatisation
Catozzi, Nicola,Bromley, William J.,Wasnaire, Pierre,Gibson, Mairi,Taylor, Richard J. K.
, p. 2217 - 2221 (2007)
A new and straightforward procedure is described for the preparation of highly substituted pyridines and pyridazines. The method involves a Diels-Alder/retro-Diels-Alder sequence leading to dihydropyridine or related intermediates, which can be aromatized
Proline-catalyzed direct inverse electron demand diels-alder reactions of ketones with 1,2,4,5-tetrazines
Xie, Hexin,Zu, Liansuo,Oueis, Hanine R.,Li, Hao,Wang, Jian,Wang, Wei
supporting information; experimental part, p. 1923 - 1926 (2009/04/08)
An organocatalytic direct inverse electron demand Diels-Alder reaction of ketones with 1,2,4,5-tetrazines has been developed. The process is efficiently catalyzed by proline to give Diels-Alder adducts pyridazines in high yields.
SYNTHESIS OF NOVEL HETEROCYCLIC CLEFTS DERIVED FROM TETRACYCLO4,11.05,9>UNDECANE-3,6-DIONE AND TRICYCLO2,6>UNDECANE-3,11-DIONE
Haddadin, Makhluf J.,Wang, Yanjun,Frenkel, Svetlana,Bott, Simon G.,Yang, Lei,et al.
, p. 869 - 882 (2007/10/02)
New molecular clefts (6a-6c), (9a), and (9b) have been prepared via base promoted reactions of 3,6-diaryl-1,2,4,5-tetrazines with tetracyclo4,11.05,9>undecane-3,6-dione (1) and with tricyclo2,6>undecane-3,1
Diels-Alder Reactions of 3,6-Diphenyl-1,2,4,5-Tetrazine and 3,6-Di(2-pyridyl)-1,2,4,5-tetrazine with some 1-Morpholinocycloalkenes
Atfah, M. Adnan
, p. 717 - 719 (2007/10/02)
The reactions of 3,6-diphenyl-1,2,4,5-tetrazine 1 and 3,6-di(2-pyridyl)-1,2,4,5-tetrazine 2 with the enamines 3a-d derived from morpholine and the 5-,6-,7- and 8-membered cyclic ketones have been investigated.A number of pyridazine derivatives 4-7 most of
Cycloaddition Reactions with Azabenzenes, XIV. - Synthesis of Benzocyclopentisoquinolines and Benzocyclopentisoquinolines (12-Azasteroids)
Neunhoeffer, Hans,Metz, Hans-Joachim
, p. 1476 - 1495 (2007/10/02)
Reaction of methyl cyclopenta-1,2,4-triazine-3-carboxylate (5a) with 1-(6-methoxy-3,4-dihydro-1-naphthyl)pyrrolidine (4a) and with 1-(6-methoxy-3,4-dihydro-2-naphthyl)pyrrolidine (4b) yields the benzocyclopentisoquinolinecarboxylate 6a and the be
