噻吩并[2,3- e ] [1,2,4]三嗪的分子内4 + 2环加成反应:缩合噻吩并[2,3- b ]吡啶的途径
摘要:
合成新的缩合噻吩并吡啶环系统的方法,包括呋喃[2,3- b ]噻吩并[3,2- e ]吡啶,双铋[2,3- b:3',2'- e ]吡啶,5 H- chromeno [ 2,3- b ]噻吩并[3,2- e ]吡啶,5 H-苯并(f)chromeno [2,3- b ]噻吩并[3,2- e ]吡啶已通过分子内4 + 2的应用获得适当设计的噻吩并[2,3- e ] [1,2,4]三嗪与烯烃或炔烃末端连接的环加成反应。
Comparative studies for selective deprotection of the N-arylideneamino moiety from heterocyclic amides: kinetic and theoretical studies. Part 2
作者:Nouria A. Al-Awadi、Yehia A. Ibrahim、Hicham H. Dib、Maher R. Ibrahim、Boby J. George、Mariam R. Abdallah
DOI:10.1016/j.tet.2006.04.054
日期:2006.6
synthesized and pyrolyzed in the gasphase. The kinetic effect of changing the substituent on the triazine ring from hydrogen to methyl, phenyl, and styryl was measured. Analyses of the pyrolyzates of 2–5 showed the elimination products to be benzonitrile and the triazine fragment, while the pyrolyzates of 6 and 7 reveal the formation of cis- and trans-cinnamonitriles. Theoretical study of the pyrolysis reactions
Selective Synthesis and Structure of 6-Arylvinyl-2- and 4-Glucosyl-1,2,4-triazines of Expected Interesting Biological Activity
作者:Abdel Kader Mansour、Yehia A. Ibrahim、Nasser S. A. M. Khalil
DOI:10.1080/07328319908044880
日期:1999.10
The 6-beta-arylvinyl-2- and 4-glucosyl-3-thioxo-2,3-dihydro-1,2,4-triazin-5(4H)-ones were synthesized with high selectivity using the recently developed amino protecting group strategy. The structure of these new glucosides was established chemically, and spectroscopically. Also, some interesting chemical transformations and rearrangements were observed.
EID, M. M.;BADAWY, M. A.;GHAZALA, M. A. H.;IBRAHIM, Y. A., J. HETEROCYCL. CHEM., 1983, 20, N 6, 1709-1711
作者:EID, M. M.、BADAWY, M. A.、GHAZALA, M. A. H.、IBRAHIM, Y. A.
DOI:——
日期:——
IBRAHIM Y. A.; EID M. M., INDIAN J. CHEM. <IJOC-AP>, 1975, 13, NO 10, 1098-1100