-
7
-
-
43649102005
-
-
1a this denomination is not recommended
-
1a this denomination is not recommended
-
(1988)
Chem. Abstr.
, vol.108
, pp. 55129
-
-
-
8
-
-
0000848797
-
-
For the first example to be prepared, see [this compound (like type A,B, and D members) was then termed 'heteropentalene with ylidic characteristics:' K.T. Potts, 'The Chemistry of Heterocyclic Compounds: Heteropentalenes,' Vol. 30, ed. by A. Weissberger and E.C. Taylor, John Wiley & Sons, New York, 1977, pp. 317-379]
-
For the first example to be prepared, see. Potts K.T., and Marshall J.C. J Org. Chem. 41 (1976) 129 [this compound (like type A,B, and D members) was then termed 'heteropentalene with ylidic characteristics:' K.T. Potts, 'The Chemistry of Heterocyclic Compounds: Heteropentalenes,' Vol. 30, ed. by A. Weissberger and E.C. Taylor, John Wiley & Sons, New York, 1977, pp. 317-379]
-
(1976)
J Org. Chem.
, vol.41
, pp. 129
-
-
Potts, K.T.1
Marshall, J.C.2
-
9
-
-
43649087913
-
-
Bicyclic structures having as β half ring a 1,2,3-triazole or tetrazole unit (8 in all) were not included in this chart because compounds of that kind should ring-open to the valence isomeric diazoalkyl and azidoazoles, respectively (see 'Properties'). - Type C systems with phosphorus in any of the positions (a-e) and (Y) do not seem to have been prepared until now.
-
Bicyclic structures having as β half ring a 1,2,3-triazole or tetrazole unit (8 in all) were not included in this chart because compounds of that kind should ring-open to the valence isomeric diazoalkyl and azidoazoles, respectively (see 'Properties'). - Type C systems with phosphorus in any of the positions (a-e) and (Y) do not seem to have been prepared until now.
-
-
-
-
10
-
-
43649088027
-
-
For the sake of uniformity all derivatives are represented by the same resonance structure.
-
For the sake of uniformity all derivatives are represented by the same resonance structure.
-
-
-
-
11
-
-
0000308451
-
-
Katritzky A.R., and Boulton A.J. (Eds), Academic Press, Inc., London
-
Elguero J., Claramunt R.M., and Summers A.J.H. In: Katritzky A.R., and Boulton A.J. (Eds). 'Advances in Heterocyclic Chemistry: The Chemistry of Aromatic Azapentalenes,' Vol. 22 (1978), Academic Press, Inc., London 183-320
-
(1978)
'Advances in Heterocyclic Chemistry: The Chemistry of Aromatic Azapentalenes,'
, vol.22
, pp. 183-320
-
-
Elguero, J.1
Claramunt, R.M.2
Summers, A.J.H.3
-
17
-
-
70249083919
-
-
Technical University of Braunschweig (Germany)
-
Schneider J.-C. Dissertation (2006), Technical University of Braunschweig (Germany)
-
(2006)
Dissertation
-
-
Schneider, J.-C.1
-
20
-
-
84912639398
-
-
Technical University of Braunschweig (Germany)
-
Holtmann B. Dissertation (1998), Technical University of Braunschweig (Germany)
-
(1998)
Dissertation
-
-
Holtmann, B.1
-
24
-
-
43649093387
-
-
Technical University of Braunschweig (Germany)
-
Lembcke A. Dissertation (1985), Technical University of Braunschweig (Germany)
-
(1985)
Dissertation
-
-
Lembcke, A.1
-
27
-
-
0032835352
-
-
Araki S., Hattori H., Shimizu N., Ogawa K., Yamamura H., and Kawai M. J. Heterocycl. Chem. 36 (1999) 863
-
(1999)
J. Heterocycl. Chem.
, vol.36
, pp. 863
-
-
Araki, S.1
Hattori, H.2
Shimizu, N.3
Ogawa, K.4
Yamamura, H.5
Kawai, M.6
-
28
-
-
0034740854
-
-
Araki S., Hattori H., Ogawa K., Kuzuya M., Inoue T., Yamamura H., and Kawai M. J. Chem. Soc., Perkin Trans. I (2001) 2476
-
(2001)
J. Chem. Soc., Perkin Trans.
, vol.I
, pp. 2476
-
-
Araki, S.1
Hattori, H.2
Ogawa, K.3
Kuzuya, M.4
Inoue, T.5
Yamamura, H.6
Kawai, M.7
-
30
-
-
0026739107
-
-
Chavignon O., Teulade J.C., Madesclaire M., Gueiffier A., Blache Y., Viols H., Chapat P., and Dauphin G. J. Heterocycl. Chem. 29 (1992) 691
-
(1992)
J. Heterocycl. Chem.
, vol.29
, pp. 691
-
-
Chavignon, O.1
Teulade, J.C.2
Madesclaire, M.3
Gueiffier, A.4
Blache, Y.5
Viols, H.6
Chapat, P.7
Dauphin, G.8
-
35
-
-
43649089852
-
-
7a needs confirmation.
-
7a needs confirmation.
-
-
-
-
39
-
-
0345865341
-
-
Ege G., Heck R., Gilbert K., Irngartinger H., Huber-Patz U., and Rodewald H. J. Heterocycl. Chem. 20 (1983) 1629
-
(1983)
J. Heterocycl. Chem.
, vol.20
, pp. 1629
-
-
Ege, G.1
Heck, R.2
Gilbert, K.3
Irngartinger, H.4
Huber-Patz, U.5
Rodewald, H.6
-
41
-
-
0013311277
-
-
Alajarin M., Molina P., Tarraga A., Vilaplana M.J., de la C. Foces-Foces M., Hernandez Cano F., Claramunt R.M., and Elguero J. Bull. Chem. Soc. Jpn. 58 (1985) 735
-
(1985)
Bull. Chem. Soc. Jpn.
, vol.58
, pp. 735
-
-
Alajarin, M.1
Molina, P.2
Tarraga, A.3
Vilaplana, M.J.4
de la C. Foces-Foces, M.5
Hernandez Cano, F.6
Claramunt, R.M.7
Elguero, J.8
-
50
-
-
0043172260
-
-
Tumkevicius S., Labanauskas L., Bucinskaite V., Brukstus A., and Urbelis G. Tetrahedron Lett. 44 (2003) 6635
-
(2003)
Tetrahedron Lett.
, vol.44
, pp. 6635
-
-
Tumkevicius, S.1
Labanauskas, L.2
Bucinskaite, V.3
Brukstus, A.4
Urbelis, G.5
-
51
-
-
43649104570
-
-
Labanauskas L., Bucinskaite V., Brukstus A., Urbelis G., and Sharlauskas I. Khim. Geterotsikl. Soedin (2005) 922
-
(2005)
Khim. Geterotsikl. Soedin
, pp. 922
-
-
Labanauskas, L.1
Bucinskaite, V.2
Brukstus, A.3
Urbelis, G.4
Sharlauskas, I.5
-
52
-
-
26244435128
-
-
Labanauskas L., Bucinskaite V., Brukstus A., Urbelis G., and Sharlauskas I. Chem. Heterocycl. Compd. 41 (2005) 802
-
(2005)
Chem. Heterocycl. Compd.
, vol.41
, pp. 802
-
-
Labanauskas, L.1
Bucinskaite, V.2
Brukstus, A.3
Urbelis, G.4
Sharlauskas, I.5
-
58
-
-
37049107862
-
-
Butler R.N., McEvoy T., Alcalde E., Claramunt R.M., and Elguero J. J. Chem. Soc., Perkin Trans 1 (1979) 2886
-
(1979)
J. Chem. Soc., Perkin Trans
, vol.1
, pp. 2886
-
-
Butler, R.N.1
McEvoy, T.2
Alcalde, E.3
Claramunt, R.M.4
Elguero, J.5
-
69
-
-
84944028415
-
-
Jones G. (Ed), Pergamon, Oxford Series ed. by A.R. Katritzky, C.W. Rees, E.F. Scriven
-
Moderhack Cf.D. In: Jones G. (Ed). 'Comprehensive Heterocyclic Chemistry II: Bicyclic 5-5 Systems with One Ring Junction Nitrogen Atom: Four Extra Heteroatoms 3:1,' Vol. 8 (1996), Pergamon, Oxford 227-236 Series ed. by A.R. Katritzky, C.W. Rees, E.F. Scriven
-
(1996)
'Comprehensive Heterocyclic Chemistry II: Bicyclic 5-5 Systems with One Ring Junction Nitrogen Atom: Four Extra Heteroatoms 3:1,'
, vol.8
, pp. 227-236
-
-
Moderhack, Cf.D.1
-
70
-
-
43649099180
-
-
There are no reports on the derivatives (23′/23′o).
-
There are no reports on the derivatives (23′/23′o).
-
-
-
-
73
-
-
0030803379
-
-
Ceulemans E., Vercauteren K., Dyall L.K., Buelens D., and Dehaen W. Tetrahedron 53 (1997) 9657
-
(1997)
Tetrahedron
, vol.53
, pp. 9657
-
-
Ceulemans, E.1
Vercauteren, K.2
Dyall, L.K.3
Buelens, D.4
Dehaen, W.5
-
88
-
-
43649105197
-
-
9c,10 it is assumed that C(3a) of the type C' isomer resonates at δ 150.4.
-
9c,10 it is assumed that C(3a) of the type C' isomer resonates at δ 150.4.
-
-
-
-
89
-
-
43649096242
-
-
1b).
-
1b).
-
-
-
-
90
-
-
43649092685
-
-
18
-
18
-
-
-
-
91
-
-
43649103477
-
-
Interestingly, the cycloadduct (83) on treatment with triethylamine looses sulfur to give the respective 3-benzylidene-3H pyrrolo[1,2-c]imidazole; this species may undergo ring closure into a tetracycle that is stabilized by dehydrogenation
-
Tsuge O., Kanemasa S., and Hamamoto T. Chem. Lett (1983) 763 Interestingly, the cycloadduct (83) on treatment with triethylamine looses sulfur to give the respective 3-benzylidene-3H pyrrolo[1,2-c]imidazole; this species may undergo ring closure into a tetracycle that is stabilized by dehydrogenation
-
(1983)
Chem. Lett
, pp. 763
-
-
Tsuge, O.1
Kanemasa, S.2
Hamamoto, T.3
-
92
-
-
43649105467
-
-
19
-
19
-
-
-
-
93
-
-
84945022875
-
-
The endo isomer of 89 did not result because of steric hindrance. In addition to dimethyl maleate, dimethyl fumarate and maleoand fumaronitrile were studied; as the reactions were carried out in boiling benzene only, epithio cycloadducts were the sole products (obtained as mixtures of stereoisomers)
-
Tsuge O., Kanemasa S., and Hamamoto T. Chem. Lett (1983) 85 The endo isomer of 89 did not result because of steric hindrance. In addition to dimethyl maleate, dimethyl fumarate and maleoand fumaronitrile were studied; as the reactions were carried out in boiling benzene only, epithio cycloadducts were the sole products (obtained as mixtures of stereoisomers)
-
(1983)
Chem. Lett
, pp. 85
-
-
Tsuge, O.1
Kanemasa, S.2
Hamamoto, T.3
-
94
-
-
43649105746
-
-
37a (Scheme 11).
-
37a (Scheme 11).
-
-
-
-
96
-
-
43649103892
-
-
1c
-
1c
-
-
-
-
97
-
-
43649092552
-
-
61
-
61
-
-
-
-
98
-
-
0012617777
-
-
Chem. Abstr.,1977, 86, 89707. - Obviously the authors did not set out to deprotonate the compound; this would have given the free base of [1,2,4]triazolo[3,4-a]isoindole: an unknown tricyclic congener of system (3)
-
Babichev F.S., Romanov N.N., and Shmailova V.P. Ukr. Khim. Zh. (Russ. Ed.) 42 (1976) 1159 Chem. Abstr.,1977, 86, 89707. - Obviously the authors did not set out to deprotonate the compound; this would have given the free base of [1,2,4]triazolo[3,4-a]isoindole: an unknown tricyclic congener of system (3)
-
(1976)
Ukr. Khim. Zh. (Russ. Ed.)
, vol.42
, pp. 1159
-
-
Babichev, F.S.1
Romanov, N.N.2
Shmailova, V.P.3
-
101
-
-
0000267058
-
-
This unexpected valence isomerism was first observed with the type C' isomers of series (4)
-
This unexpected valence isomerism was first observed with the type C' isomers of series (4). Moderhack D., and Decker D. Heterocycles 37 (1994) 683
-
(1994)
Heterocycles
, vol.37
, pp. 683
-
-
Moderhack, D.1
Decker, D.2
-
102
-
-
0042320446
-
-
Araki S., Kuzuya M., Hamada K., Nogura M., and Ohata N. Org. Biomol. Chem. 1 (2003) 978
-
(2003)
Org. Biomol. Chem.
, vol.1
, pp. 978
-
-
Araki, S.1
Kuzuya, M.2
Hamada, K.3
Nogura, M.4
Ohata, N.5
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