Indexed keywords
INTERMOLECULAR REDUCTIVE CYCLODIMERIZATION;
LOW-VALENT TITANIUM;
TITANIUM REAGENT;
UNSATURATED KETONES;
CYCLIZATION;
KETONES;
STEREOCHEMISTRY;
X RAY DIFFRACTION ANALYSIS;
UNSATURATED COMPOUNDS;
1,2 BIS (4 FLUOROPHENYL) 3A HYDROXY 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
1,2 BIS(1,3 BENZODIOXOL 5 YL) 3A HYDROXY 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
1,2 BIS(2 FURYL) 3A HYDROXYL 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
1,2 BIS(3 CHLOROPHENYL) 3A HYDROXY 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
1,2 BIS(3,4 DICHLOROPHENYL) 3A HYDROXY 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
1,2 BIS(3,4 DIMETHYLPHENYL) 3A HYDROXY 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
1,2 BIS(4 BROMOPHENYL) 3A HYDROXY 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
1,2 BIS(4 CHLOROPHENYL) 3A HYDROXY 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
2 BENZYLIDENE 1 TETRALONE;
2 BENZYLIDENEINDAN 1 ONE;
2,3 BIS (4 FLUOROPHENYL) 3,3',3A 4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE 1,2' NAPHTHALENE] 1',9B(2H) DIOL;
2,3 BIS(1,3 BENZODIOXOL 5 YL) 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE] 1',9B(2H) DIOL;
2,3 BIS(2,4 DICHLORPHENYL) 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE 1,2' NAPHTHALENE] 1',9B(2H) DIOL;
2,3 BIS(3,4 DICHLOROPHENYL) 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE 1,2' NAPHTHALENE] 1',9B(2H) DIOL;
2,3 BIS(3,4 DIMETHOXYPHENYL) 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE 1,2' NAPHTHALENE] 1',9B(2H) DIOL;
2,3 BIS(3,4 DIMETHYLPHENYL) 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE 1,2' NAPHTHALENE] 1',9B(2H)DIOL;
2,3 BIS(4 BROMOPHENYL) 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE 1,2' NAPHTHALENE] 1',9B(2H) DIOL;
2,3 DI(4 TOLYL) 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPENT[A]NAPHTHALENE 1,2' NAPHTHALENE 1',9B(2H) DIOL;
2,3 DIPHENYL 3,3',3A,4,4',5 HEXAHYDRO 1'H SPIRO[CYCLOPNET[A]NAPHTHALENE 1,2' NAPTHALENE] 1',9B(2H) DIOL;
3 BENZYLIDENECHROMAN 4 ONE;
3 BENZYLIDENETHIOCHROMAN 4 ONE;
3A HYDROXY 1,2 BIS(2 THIOFURYL) 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
3A HYDROXY 1,2 BIS(4 METHOXYPHENYL) 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
3A HYDROXY 1,2 BIS(4 TOLYL) 1,3A,8,8A TETRAHYDRO 2H SPIRO[CYCLOPENT[A]INDENE 3,2' INDEN] 1'(3'H) ONE;
9B' HYDROXY 2',3' DI(4 TOLYL) 2',3',3A',9B' TETRAHYDRO 4H,4'H SPIRO[CHROMENE 3,1' CYCLOPENTA[C]CHROMENE] 4 ONE;
BIS(4 FLUOROPHENYL) 9B' HYDROXY 2',3',3A',9B' TETRAHYDRO 4H,4'H SPIRO[CHROMENE 3,1' CYCLOPENTA[C]CHROMEN] 4 ONE;
KETONE DERIVATIVE;
SPIRO COMPOUND;
TITANIUM;
UNCLASSIFIED DRUG;
UNINDEXED DRUG;
ARTICLE;
BIOLOGICAL ACTIVITY;
CHEMICAL REACTION;
DIMERIZATION;
DRUG STRUCTURE;
DRUG SYNTHESIS;
PROTON NUCLEAR MAGNETIC RESONANCE;
PROTON TRANSPORT;
RACEMIZATION;
STEREOCHEMISTRY;
X RAY DIFFRACTION;
5
0000659172
(d) Furstner, A.; Bogdanovi, B. Angew. Chem., Int. Ed. Engl. 1996, 35, 2443.
(1996)
Angew. Chem., Int. Ed. Engl
, vol.35
, pp. 2443
Furstner, A.1
Bogdanovi, B.2
6
0030199962
(e) Mariappan, P.; Mallad, P. R.; Kanth, J. V. B. Tetrahedron Lett. 1996, 37, 4767.
(1996)
Tetrahedron Lett
, vol.37
, pp. 4767
Mariappan, P.1
Mallad, P.R.2
Kanth, J.V.B.3
7
0035479498
(f) Mariappan, P.; Gadthula, S.; Surisetti, S. Tetrahedron Lett. 2001, 42, 7123.
(2001)
Tetrahedron Lett
, vol.42
, pp. 7123
Mariappan, P.1
Gadthula, S.2
Surisetti, S.3
9
0027275916
(a) Shi, D. Q.; Chen, J. X.; Chai, W. Y.; Chen, W. X.; Kao, T. Y. Tetrahedron Lett. 1993, 34, 2963.
(1993)
Tetrahedron Lett
, vol.34
, pp. 2963
Shi, D.Q.1
Chen, J.X.2
Chai, W.Y.3
Chen, W.X.4
Kao, T.Y.5
10
0037424799
(b) Shi, D. Q.; Rong, L. C.; Wang, J. X.; Zhuang, Q. Y.; Wang, X. S.; Hu, H. W. Tetrahedron Lett. 2003, 44, 3199.
(2003)
Tetrahedron Lett
, vol.44
, pp. 3199
Shi, D.Q.1
Rong, L.C.2
Wang, J.X.3
Zhuang, Q.Y.4
Wang, X.S.5
Hu, H.W.6
11
3142655687
(c) Shi, D. Q.; Wang, J. X.; Shi, C. L.; Rong, L. C.; Zhuang, Q. Y.; Hu, H. W. Synlett 2004, 1098.
(2004)
Synlett
, pp. 1098
Shi, D.Q.1
Wang, J.X.2
Shi, C.L.3
Rong, L.C.4
Zhuang, Q.Y.5
Hu, H.W.6
12
5644223408
(d) Shi, D. Q.; Shi, C. L.; Wang, X. S.; Zhuang, Q. Y.; Tu, S. J.; Hu, H. W. Synlett 2004, 2239.
(2004)
Synlett
, pp. 2239
Shi, D.Q.1
Shi, C.L.2
Wang, X.S.3
Zhuang, Q.Y.4
Tu, S.J.5
Hu, H.W.6
13
0001276146
(a) Li, J.; Shi, D. Q.; Chen, W. X. Heterocycles 1997, 45, 2381.
(1997)
Heterocycles
, vol.45
, pp. 2381
Li, J.1
Shi, D.Q.2
Chen, W.X.3
14
0030697257
(b) Shi, D. Q.; Lu, Z. S.; Mu, L. L.; Dai, G. Y. Synth. Commun. 1997, 27, 4121.
(1997)
Synth. Commun
, vol.27
, pp. 4121
Shi, D.Q.1
Lu, Z.S.2
Mu, L.L.3
Dai, G.Y.4
15
0141536048
(c) Zhou, L. H.; Tu, S. J.; Shi, D. Q.; Dai, G. Y. J. Chem. Res., Synop. 1998, 398.
(1998)
J. Chem. Res., Synop
, pp. 398
Zhou, L.H.1
Tu, S.J.2
Shi, D.Q.3
Dai, G.Y.4
16
0031800165
(d) Zhou, L. H.; Tu, S. J.; Shi, D. Q.; Chen, W. X. Synthesis 1998, 851.
(1998)
Synthesis
, pp. 851
Zhou, L.H.1
Tu, S.J.2
Shi, D.Q.3
Chen, W.X.4
17
17144420506
(e) Shi, D. Q.; Rong, L. C.; Shi, C. L.; Zhuang, Q. Y.; Wang, X. S.; Tu, S. J.; Hu, H. W. Synthesis 2005, 717.
(2005)
Synthesis
, pp. 717
Shi, D.Q.1
Rong, L.C.2
Shi, C.L.3
Zhuang, Q.Y.4
Wang, X.S.5
Tu, S.J.6
Hu, H.W.7
20
0000290296
Wiley-Interscience: New York
(c) Heathcock, C. H.; Graham, S. L.; Pirrung, M. C.; Plavac, F.; White, C. T. The Total Synthesis of Natural Products, Vol. 5; Wiley-Interscience: New York, 1983, 264.
(1983)
The Total Synthesis of Natural Products
, vol.5
, pp. 264
Heathcock, C.H.1
Graham, S.L.2
Pirrung, M.C.3
Plavac, F.4
White, C.T.5
22
0032712944
Bozan, B.; Ozek, T.; Kurkcuoglu, M.; Kirimer, N.; Baser, K.; Husnu, C. Planta Med. 1999, 65, 781.
(1999)
Planta Med
, vol.65
, pp. 781
Bozan, B.1
Ozek, T.2
Kurkcuoglu, M.3
Kirimer, N.4
Baser, K.5
Husnu, C.6
23
0042403276
(a) Tanis, S. P.; Herrinton, P. M.; Dixon, L. A. Tetrahedron Lett. 1985, 26, 5347.
(1985)
Tetrahedron Lett
, vol.26
, pp. 5347
Tanis, S.P.1
Herrinton, P.M.2
Dixon, L.A.3
26
37049081406
(d) Imanishi, T.; Ohra, T.; Sugiyama, K.; Veda, Y.; Takemoto, Y.; Iwata, C. J. Chem. Soc., Chem. Commun. 1992, 269.
(1992)
J. Chem. Soc., Chem. Commun
, pp. 269
Imanishi, T.1
Ohra, T.2
Sugiyama, K.3
Veda, Y.4
Takemoto, Y.5
Iwata, C.6
29
0034714251
(g) Kuroda, C.; Koshio, H.; Koito, A.; Sumiya, H.; Murase, A.; Hirono, Y. Tetrahedron 2004, 56, 6441.
(2004)
Tetrahedron
, vol.56
, pp. 6441
Kuroda, C.1
Koshio, H.2
Koito, A.3
Sumiya, H.4
Murase, A.5
Hirono, Y.6
30
0343288721
Tataki, K.; Beppu, F.; Tanaka, S.; Tsubaki, Y.; Jintoku, Y.; Fujiwara, Y. J. Chem. Soc., Chem. Commun. 1990, 516.
(1990)
J. Chem. Soc., Chem. Commun
, pp. 516
Tataki, K.1
Beppu, F.2
Tanaka, S.3
Tsubaki, Y.4
Jintoku, Y.5
Fujiwara, Y.6
31
0038965178
Bao, J.; Bei, M.; Lu, J.; Zhang, J.; Song, Q. Chin. Chem. Lett. 1993, 4, 593.
(1993)
Chin. Chem. Lett
, vol.4
, pp. 593
Bao, J.1
Bei, M.2
Lu, J.3
Zhang, J.4
Song, Q.5
33
0030898481
Zhou, L. H.; Shi, D. Q.; Gao, Y.; Shen, W. B.; Dai, G. Y.; Chen, W. X. Tetrahedron Lett. 1997, 38, 2729.
(1997)
Tetrahedron Lett
, vol.38
, pp. 2729
Zhou, L.H.1
Shi, D.Q.2
Gao, Y.3
Shen, W.B.4
Dai, G.Y.5
Chen, W.X.6
34
33750275397
Cabrera, A.; Le Lagadec, R.; Sharma, P.; Arias, J. L.; Toscano, R. A.; Velasco, L.; Gavino, R.; Alvarez, C.; Salmon, M. J. Chem. Soc., Perkin Trans. 1 1998, 3609.
(1998)
J. Chem. Soc., Perkin Trans. 1
, pp. 3609
Cabrera, A.1
Le Lagadec, R.2
Sharma, P.3
Arias, J.L.4
Toscano, R.A.5
Velasco, L.6
Gavino, R.7
Alvarez, C.8
Salmon, M.9
35
0000908708
(a) Fournier, F.; Berthelot, J.; Basselier, J. J. Tetrahedron 1985, 41, 5667.
(1985)
Tetrahedron
, vol.41
, pp. 5667
Fournier, F.1
Berthelot, J.2
Basselier, J.J.3
36
0842264106
(b) Kise, N.; Kitagishi, Y.; Ueda, N. J. Org. Chem. 2004, 69, 959.
(2004)
J. Org. Chem
, vol.69
, pp. 959
Kise, N.1
Kitagishi, Y.2
Ueda, N.3
37
32244442078
Li, Z. Y.; Shi, D. Q.; Shi, C. L.; Dou, G. L. Acta Crystallogr., Sect. E 2005, 61, o2709.
(2005)
Acta Crystallogr., Sect. E
, vol.61
Li, Z.Y.1
Shi, D.Q.2
Shi, C.L.3
Dou, G.L.4
38
18444399975
Shi, D. Q.; Shi, C. L.; Wang, X. S.; Rong, L. C.; Hu, H. W. Acta Crystallogr., Sect. E 2004, 60, o1859.
(2004)
Acta Crystallogr., Sect. E
, vol.60
Shi, D.Q.1
Shi, C.L.2
Wang, X.S.3
Rong, L.C.4
Hu, H.W.5
39
34347407596
-1. Intensity data were collected on a Smart-1000 diffractometer with graphite monochromated Mo Kα radiation (λ = 0.71073 Å) using the ω scan mode with 2.04° < 6 θ 25.01°; 4637 unique reflections were measured and 1921 reflections with I > 2σ(I) were used in the Fourier techniques. The final refinement was converged to R = 0.0570 and wR = 0.1140.
-1. Intensity data were collected on a Smart-1000 diffractometer with graphite monochromated Mo Kα radiation (λ = 0.71073 Å) using the ω scan mode with 2.04° < 6 θ 25.01°; 4637 unique reflections were measured and 1921 reflections with I > 2σ(I) were used in the Fourier techniques. The final refinement was converged to R = 0.0570 and wR = 0.1140.
40
34347369127
Crystal data for 9a: C32H26Br 2O2S2 CH3COCH3; M, 724.55, colorless block crystal, 0.29 x 0.26 x 0.10 mm, triclinic, space group P-1, a, 11.476 (2, b, 12.064 (3, c, 13.002 (3) Å, α, 77.283 (3, β, 67.200(3, γ, 80.305 (4)°, V, 1611.7 (6) Å3, Z, 2, Dc, 1.493 g·cm-3, F(000, 736, μ(Mo Kα, 2.678 mm-1. Intensity data were collected on a Smart-1000 diffractometer with graphite monochromated Mo Kα radiation (λ, 0.71073 Å) using the ω scan mode with 1.93° < θ < 25.01°; 5625 unique reflections were measured and 2927 reflections with I > 2σ(I) were used in the Fourier techniques. The final refinement was converged to R, 0.0500 and wR, 0.1026
-1. Intensity data were collected on a Smart-1000 diffractometer with graphite monochromated Mo Kα radiation (λ = 0.71073 Å) using the ω scan mode with 1.93° < θ < 25.01°; 5625 unique reflections were measured and 2927 reflections with I > 2σ(I) were used in the Fourier techniques. The final refinement was converged to R = 0.0500 and wR = 0.1026.