-
1
-
-
80052687475
-
-
For recent reports on the bioactivity study of substituted pyrazines and their derivatives, see
-
For recent reports on the bioactivity study of substituted pyrazines and their derivatives, see
-
-
-
-
2
-
-
78651067993
-
-
Kerekes A D., Esposite S J., Doll R J., Tagat J R., Yu T, Xiao Y, Zhang Y, Prelusky D B., Tevar S, Gray K, Terracina G A., Lee S, Jones J, Liu M, Basso A D., Smith E B., J. Med. Chem. 2011 54 201
-
(2011)
J. Med. Chem.
, vol.54
, pp. 201
-
-
Kerekes, A.D.1
Esposite, S.J.2
Doll, R.J.3
Tagat, J.R.4
Yu, T.5
Xiao, Y.6
Zhang, Y.7
Prelusky, D.B.8
Tevar, S.9
Gray, K.10
Terracina, G.A.11
Lee, S.12
Jones, J.13
Liu, M.14
Basso, A.D.15
Smith, E.B.16
-
3
-
-
0043211876
-
-
Parlow J J., Case B L., Dice T A., Fenton R L., Hayes M J., Jones D E., Neumann W L., Wood R S., Lachance R M., Girard T J., Nicholson N S., Clare M, Stegeman R A., Stevens A M., Stallings W C., Kurumbail R G., South M S., J. Med. Chem. 2003 46 4050
-
(2003)
J. Med. Chem.
, vol.46
, pp. 4050
-
-
Parlow, J.J.1
Case, B.L.2
Dice, T.A.3
Fenton, R.L.4
Hayes, M.J.5
Jones, D.E.6
Neumann, W.L.7
Wood, R.S.8
Lachance, R.M.9
Girard, T.J.10
Nicholson, N.S.11
Clare, M.12
Stegeman, R.A.13
Stevens, A.M.14
Stallings, W.C.15
Kurumbail, R.G.16
South, M.S.17
-
9
-
-
84918108176
-
-
Rothkopf H W., Wöhrle D, Müller R, Kossmehl G, Chem. Ber. 1975 108 875
-
(1975)
Chem. Ber.
, vol.108
, pp. 875
-
-
Rothkopf, H.W.1
Wöhrle, D.2
Müller, R.3
Kossmehl, G.4
-
13
-
-
79851485633
-
-
For recent reports on the synthesis of substituted pyrazines and their derivatives, see
-
For recent reports on the synthesis of substituted pyrazines and their derivatives, see:, Modha S G., Trivedi J C., Mehta V P., Ermolate D S., VanderEycken E V., [nl]J. Org. Chem. 2011 76 846
-
(2011)
[Nl]J. Org. Chem.
, vol.76
, pp. 846
-
-
Modha, S.G.1
Trivedi, J.C.2
Mehta, V.P.3
Ermolate, D.S.4
Vandereycken, E.V.5
-
17
-
-
33748842983
-
-
Sato N, Matsumoto K, Takishima M, Mochizuki K, J. Chem. Soc., Perkin Trans. 1 1997 3167
-
(1997)
J. Chem. Soc., Perkin Trans. 1
, pp. 3167
-
-
Sato, N.1
Matsumoto, K.2
Takishima, M.3
Mochizuki, K.4
-
20
-
-
79958257602
-
-
in press; DOI: 10.1002/anie.201100362
-
Wang H, Wang Y, Liang D, Liu L, Zhang J, Zhu Q, Angew. Chem. Int. Ed. 2011 50 in press; DOI: 10.1002/anie.201100362
-
(2011)
Angew. Chem. Int. Ed.
, vol.50
-
-
Wang, H.1
Wang, Y.2
Liang, D.3
Liu, L.4
Zhang, J.5
Zhu, Q.6
-
21
-
-
80052655823
-
-
4 and NaOAc exhibited similar reactivity, while MgO was not a viable catalyst for this transformation.
-
4 and NaOAc exhibited similar reactivity, while MgO was not a viable catalyst for this transformation.
-
-
-
-
22
-
-
80052653521
-
-
The structures of 3b and 3i were secured by X-ray crystallographic analysis (see Supporting Information). The supplementary crystallographic data of these molecules are contained in CCDC 824717 and 824717, respectively. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/conts/retrieving.html.
-
The structures of 3b and 3i were secured by X-ray crystallographic analysis (see Supporting Information). The supplementary crystallographic data of these molecules are contained in CCDC 824717 and 824717, respectively. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/conts/retrieving.html.
-
-
-
-
23
-
-
33645344172
-
-
Dihydropyrazinone 4 might be formed from the proposed primary alkyl radical D (in Scheme 7) by hydrogen abstraction from the solvent DMF. For the process of hydrogen abstraction from the solvent DMF
-
Dihydropyrazinone 4 might be formed from the proposed primary alkyl radical D (in Scheme 7) by hydrogen abstraction from the solvent DMF. For the process of hydrogen abstraction from the solvent DMF:, Minisci F, Citterio A, Vismara E, Giordano C, Tetrahedron 1985 41 4157
-
(1985)
Tetrahedron
, vol.41
, pp. 4157
-
-
Minisci, F.1
Citterio, A.2
Vismara, E.3
Giordano, C.4
-
25
-
-
0001680216
-
-
For generation of imine from -azido ketones and esters under the strong basic conditions, see
-
For generation of imine from -azido ketones and esters under the strong basic conditions, see:, Manis P A., Rathke M W., J. Org. Chem. 1980 45 4952
-
(1980)
J. Org. Chem.
, vol.45
, pp. 4952
-
-
Manis, P.A.1
Rathke, M.W.2
-
27
-
-
79953214612
-
-
One of the possibilities of the reaction course for the formation of deallylated amide 7 is outlined below. It might commence with radical 1,5-H shift from putative iminyl copper species to give allylic radical, further oxidation of which would afford allylic cation species. Addition of water to the carbocation followed by C-N bond cleavage from resulting hemiaminal could deliver deallylated amide 7 (Scheme 8). We recently reported similar 1,5-H shift from iminyl copper species, see
-
One of the possibilities of the reaction course for the formation of deallylated amide 7 is outlined below. It might commence with radical 1,5-H shift from putative iminyl copper species to give allylic radical, further oxidation of which would afford allylic cation species. Addition of water to the carbocation followed by C-N bond cleavage from resulting hemiaminal could deliver deallylated amide 7 (Scheme 8). We recently reported similar 1,5-H shift from iminyl copper species, see:, Zhane L, Ang G Y., Chiba S, Org. Lett. 2011 13 1622
-
(2011)
Org. Lett.
, vol.13
, pp. 1622
-
-
Zhane, L.1
Ang, G.Y.2
Chiba, S.3
-
28
-
-
62149120526
-
-
For recent reports on the azido-alkene 1,3-dipolar cycloaddition reaction, see
-
For recent reports on the azido-alkene 1,3-dipolar cycloaddition reaction, see:, Hui B W.-Q, Chiba S, Org. Lett. 2009 11 729
-
(2009)
Org. Lett.
, vol.11
, pp. 729
-
-
Hui, B.W.-Q.1
Chiba, S.2
-
30
-
-
46849106323
-
-
Feldman K S., Iyer M R., López C S., Faza O N., J. Org. Chem. 2008 73 5090
-
(2008)
J. Org. Chem.
, vol.73
, pp. 5090
-
-
Feldman, K.S.1
Iyer, M.R.2
López, C.S.3
Faza, O.N.4
-
32
-
-
34250852857
-
-
Kim S, Lee Y M., Lee J, Lee T, Fu Y, Song Y, Cho J, Kim D, J. Org. Chem. 2007 72 4886
-
(2007)
J. Org. Chem.
, vol.72
, pp. 4886
-
-
Kim, S.1
Lee, Y.M.2
Lee, J.3
Lee, T.4
Fu, Y.5
Song, Y.6
Cho, J.7
Kim, D.8
-
36
-
-
0001395640
-
-
For reports on the mechanism of the elimination of dinitrogen from triazoline intermediates with heterolytic cleavage of the N-N bond, see
-
For reports on the mechanism of the elimination of dinitrogen from triazoline intermediates with heterolytic cleavage of the N-N bond, see:, Shea K J., Kim J.-S, [nl]J. Am. Chem. Soc. 1992 114 4846
-
(1992)
[Nl]J. Am. Chem. Soc.
, vol.114
, pp. 4846
-
-
Shea, K.J.1
Kim, J.-S.2
-
38
-
-
0000612741
-
-
A radical pathway via homolytic cleavage of the N-N bond of triazoline intermediates is proposed, see
-
A radical pathway via homolytic cleavage of the N-N bond of triazoline intermediates is proposed, see:, Broeckx W, Overbergh N, Samyn C, Smets G, Labbé G, Tetrahedron 1971 27 3527
-
(1971)
Tetrahedron
, vol.27
, pp. 3527
-
-
Broeckx, W.1
Overbergh, N.2
Samyn, C.3
Smets, G.4
Labbé, G.5
|