-
2
-
-
33847801404
-
-
For example the use of deprotonated dithianes as masked carbonyl anion synthons has become a very popular stoichiometric approach, see: Seebach, D.; Corey, E. J. J. Org. Chem. 1975, 40, 231.
-
(1975)
J. Org. Chem.
, vol.40
, pp. 231
-
-
Seebach, D.1
Corey, E.J.2
-
4
-
-
0042628455
-
-
(b) Pohl, M.; Lingen, B.; Müller, M. Chem. Eur. J. 2002, 8, 5288.
-
(2002)
Chem. Eur. J.
, vol.8
, pp. 5288
-
-
Pohl, M.1
Lingen, B.2
Müller, M.3
-
13
-
-
84990165746
-
-
(d) Hoppe, D.; Zschage, O. Angew. Chem., Int. Ed. Engl. 1989, 28, 69.
-
(1989)
Angew. Chem., Int. Ed. Engl.
, vol.28
, pp. 69
-
-
Hoppe, D.1
Zschage, O.2
-
15
-
-
3042770459
-
-
For N-heterocyclic carbene catalyzed conjugate Umpolung and related reactions, see: (a) Chow, K. Y.-K.; Bode, J. W. J. Am. Chem. Soc. 2004, 126, 8126.
-
(2004)
J. Am. Chem. Soc.
, vol.126
, pp. 8126
-
-
Chow, K.Y.-K.1
Bode, J.W.2
-
16
-
-
3543074145
-
-
(b) Reynolds, N. T.; Read de Alaniz, J.; Rovis, T. J. Am. Chem. Soc. 2004, 126, 9518.
-
(2004)
J. Am. Chem. Soc.
, vol.126
, pp. 9518
-
-
Reynolds, N.T.1
Read De Alaniz, J.2
Rovis, T.3
-
18
-
-
7744232978
-
-
(d) Sohn, S. S.; Rosen, E. L.; Bode, J. W. J. Am. Chem. Soc. 2004, 126, 14370.
-
(2004)
J. Am. Chem. Soc.
, vol.126
, pp. 14370
-
-
Sohn, S.S.1
Rosen, E.L.2
Bode, J.W.3
-
23
-
-
33644764723
-
-
(i) Zeitler, K. Org. Lett. 2006, 8, 637. Very recently, the formation of spiro γ-butyrolactones by conjugate Umpolung using cyclic 1,2-diketones as the electrophiles was reported:
-
(2006)
Org. Lett.
, vol.8
, pp. 637
-
-
Zeitler, K.1
-
24
-
-
32644452625
-
-
(j) Nair, V.; Vellalath, S.; Poonoth, M.; Mohan, R.; Suresh, E. Org. Lett. 2006, 8, 507.
-
(2006)
Org. Lett.
, vol.8
, pp. 507
-
-
Nair, V.1
Vellalath, S.2
Poonoth, M.3
Mohan, R.4
Suresh, E.5
-
25
-
-
0000926963
-
-
For N-heterocyclic carbene catalyzed transesterification reactions, see: (a) Grasa, G. A.; Kissling, R. M.; Nolan, S. P. Org. Lett. 2002, 4, 3583.
-
(2002)
Org. Lett.
, vol.4
, pp. 3583
-
-
Grasa, G.A.1
Kissling, R.M.2
Nolan, S.P.3
-
26
-
-
0242500893
-
-
(b) Grasa, G. A.; Guveli, T.; Singh, R.; Nolan, S. P. J. Org. Chem. 2003, 68, 2812.
-
(2003)
J. Org. Chem.
, vol.68
, pp. 2812
-
-
Grasa, G.A.1
Guveli, T.2
Singh, R.3
Nolan, S.P.4
-
27
-
-
0347361511
-
-
(c) Singh, R.; Kissling, R. M.; Letellier, M.-A.; Nolan, S. P. J. Org. Chem. 2004, 69, 209.
-
(2004)
J. Org. Chem.
, vol.69
, pp. 209
-
-
Singh, R.1
Kissling, R.M.2
Letellier, M.-A.3
Nolan, S.P.4
-
29
-
-
0000913836
-
-
(e) Nyce, G. W.; Lamboy, J. A.; Connor, E. F.; Waymouth, R. M.; Hedrick, J. L. Org. Lett. 2002, 4, 3587.
-
(2002)
Org. Lett.
, vol.4
, pp. 3587
-
-
Nyce, G.W.1
Lamboy, J.A.2
Connor, E.F.3
Waymouth, R.M.4
Hedrick, J.L.5
-
30
-
-
0037065680
-
-
(f) Connor, E. F.; Nyce, G. W.; Myers, M.; Mock, A.; Hedrick, J. L. J. Am. Chem. Soc. 2002, 124, 914.
-
(2002)
J. Am. Chem. Soc.
, vol.124
, pp. 914
-
-
Connor, E.F.1
Nyce, G.W.2
Myers, M.3
Mock, A.4
Hedrick, J.L.5
-
31
-
-
0037433492
-
-
(g) Nyce, G. W.; Glauser, T.; Connor, E. F.; Mock, A.; Waymouth, R. M.; Hedrick, J. L. J. Am. Chem. Soc. 2003, 725, 3046. For a related amidation, see:
-
(2003)
J. Am. Chem. Soc.
, vol.725
, pp. 3046
-
-
Nyce, G.W.1
Glauser, T.2
Connor, E.F.3
Mock, A.4
Waymouth, R.M.5
Hedrick, J.L.6
-
33
-
-
11144327707
-
-
For the N-heterocyclic carbene catalyzed kinetic resolution of alcohols, see: (a) Suzuki, Y.; Yamauchi, K.; Muramatsu, K.; Sato, M. Chem. Commun. 2004, 2770.
-
(2004)
Chem. Commun.
, pp. 2770
-
-
Suzuki, Y.1
Yamauchi, K.2
Muramatsu, K.3
Sato, M.4
-
34
-
-
17444417515
-
-
(b) Kano, T.; Sasaki, K.; Maruoka, K. Org. Lett. 2005, 7, 1347.
-
(2005)
Org. Lett.
, vol.7
, pp. 1347
-
-
Kano, T.1
Sasaki, K.2
Maruoka, K.3
-
35
-
-
33745716505
-
-
For N-heterocyclic carbene catalyzed benzoin condensations, see: (a) Enders, D.; Niemeier, O.; Balensiefer, T. Angew. Chem. Int. Ed. 2006, 45, 1463.
-
(2006)
Angew. Chem. Int. Ed.
, vol.45
, pp. 1463
-
-
Enders, D.1
Niemeier, O.2
Balensiefer, T.3
-
38
-
-
0038375618
-
-
(d) Hachisu, Y.; Bode, J. W.; Suzuki, K. J. Am. Chem. Soc. 2003, 125, 8432.
-
(2003)
J. Am. Chem. Soc.
, vol.125
, pp. 8432
-
-
Hachisu, Y.1
Bode, J.W.2
Suzuki, K.3
-
39
-
-
5144229878
-
-
(e) Hachisu, Y.; Bode, J. W.; Suzuki, K. Adv. Synth. Catal. 2004, 346, 1097. See also:
-
(2004)
Adv. Synth. Catal.
, vol.346
, pp. 1097
-
-
Hachisu, Y.1
Bode, J.W.2
Suzuki, K.3
-
42
-
-
0037019628
-
-
For N-heterocyclic carbene catalyzed Steuer reactions, see: (a) Kerr, M. S.; Read de Alaniz, J.; Rovis, T. J. Am. Chem. Soc. 2002, 124, 10298.
-
(2002)
J. Am. Chem. Soc.
, vol.124
, pp. 10298
-
-
Kerr, M.S.1
Read De Alaniz, J.2
Rovis, T.3
-
45
-
-
1542375011
-
-
(d) Mattson, A. E.; Bharadwaj, A. R.; Scheldt, K. A. J. Am. Chem. Soc. 2004, 126, 2314.
-
(2004)
J. Am. Chem. Soc.
, vol.126
, pp. 2314
-
-
Mattson, A.E.1
Bharadwaj, A.R.2
Scheldt, K.A.3
-
47
-
-
0035909591
-
-
(f) Braun, R. U.; Zeitler, K.; Müller, T. J. J. Org. Lett. 2001, 3, 3297.
-
(2001)
Org. Lett.
, vol.3
, pp. 3297
-
-
Braun, R.U.1
Zeitler, K.2
Müller, T.J.J.3
-
49
-
-
27144548436
-
-
(h) Myers, M. C.; Bharadwaj, A. R.; Milgram, B. C.; Scheldt, K. A. J. Am. Chem. Soc. 2005, 127, 14675.
-
(2005)
J. Am. Chem. Soc.
, vol.127
, pp. 14675
-
-
Myers, M.C.1
Bharadwaj, A.R.2
Milgram, B.C.3
Scheldt, K.A.4
-
50
-
-
0038020048
-
-
For some other N-heterocyclic carbene catalyzed reactions, see: (a) Suzuki, Y.; Toyota, T.; Imada, F.; Sato, M.; Miyashita, A. Chem. Commun. 2003, 1314.
-
(2003)
Chem. Commun.
, pp. 1314
-
-
Suzuki, Y.1
Toyota, T.2
Imada, F.3
Sato, M.4
Miyashita, A.5
-
51
-
-
20444472366
-
-
(b) Song, J. J.; Tan, Z.; Reeves, J. T.; Gallou, F.; Yee, N. K.; Senanayake, C. H. Org. Lett. 2005, 7, 2193.
-
(2005)
Org. Lett.
, vol.7
, pp. 2193
-
-
Song, J.J.1
Tan, Z.2
Reeves, J.T.3
Gallou, F.4
Yee, N.K.5
Senanayake, C.H.6
-
52
-
-
32144463127
-
-
(c) Song, J. J.; Gallou, F.; Reeves, J. T.; Tan, Z.; Yee, N. K.; Senanayake, C. H. J. Org. Chem. 2006, 71, 1273.
-
(2006)
J. Org. Chem.
, vol.71
, pp. 1273
-
-
Song, J.J.1
Gallou, F.2
Reeves, J.T.3
Tan, Z.4
Yee, N.K.5
Senanayake, C.H.6
-
53
-
-
11444262868
-
-
(d) Duong, H. A.; Cross, M. J.; Louie, J. Org. Lett. 2004, 6, 4679.
-
(2004)
Org. Lett.
, vol.6
, pp. 4679
-
-
Duong, H.A.1
Cross, M.J.2
Louie, J.3
-
55
-
-
32244441382
-
-
(f) Fischer, C.; Smith, S. W.; Powell, D. A.; Fu, G. C. J. Am. Chem. Soc. 2006, 128, 1472.
-
(2006)
J. Am. Chem. Soc.
, vol.128
, pp. 1472
-
-
Fischer, C.1
Smith, S.W.2
Powell, D.A.3
Fu, G.C.4
-
56
-
-
0141853339
-
-
For the stoichiometric use of N-heterocyclic carbenes as reagents, see: (a) Nair, V.; Bindu, S.; Sreekumar, V.; Rath, N. P. Org. Lett. 2003, 5, 665.
-
(2003)
Org. Lett.
, vol.5
, pp. 665
-
-
Nair, V.1
Bindu, S.2
Sreekumar, V.3
Rath, N.P.4
-
58
-
-
33748954621
-
-
(c) Enders, D.; Breuer, K.; Raabe, G.; Runsink, J.; Teles, J. H. Liebigs Ann. Chem. 1996, 2019.
-
(1996)
Liebigs Ann. Chem.
, pp. 2019
-
-
Enders, D.1
Breuer, K.2
Raabe, G.3
Runsink, J.4
Teles, J.H.5
-
59
-
-
6044274718
-
-
(d) Nair, V.; Bindu, S.; Sreekumar, V. Angew. Chem. Int. Ed. 2004, 43, 5130.
-
(2004)
Angew. Chem. Int. Ed.
, vol.43
, pp. 5130
-
-
Nair, V.1
Bindu, S.2
Sreekumar, V.3
-
61
-
-
4143051292
-
-
For excellent reviews on N-heterocyclic carbenes in organocatalysis, see: (a) Enders, D.; Balensiefer, T. Acc. Chem. Res. 2004, 37, 534.
-
(2004)
Acc. Chem. Res.
, vol.37
, pp. 534
-
-
Enders, D.1
Balensiefer, T.2
-
64
-
-
28244479394
-
-
(d) Zeitler, K. Angew. Chem. Int. Ed. 2005, 44, 7506. For general reviews on N-heterocyclic carbenes, see:
-
(2005)
Angew. Chem. Int. Ed.
, vol.44
, pp. 7506
-
-
Zeitler, K.1
-
66
-
-
0030660076
-
-
(f) Herrmann, W. A.; Köcher, C. Angew. Chem., Int. Ed. Engl. 1997, 36, 2162.
-
(1997)
Angew. Chem., Int. Ed. Engl.
, vol.36
, pp. 2162
-
-
Herrmann, W.A.1
Köcher, C.2
-
68
-
-
0002138516
-
-
(h) Bourissou, D.; Guerret, O.; Gabbaï, F. P.; Bertrand, G. Chem. Rev. 2000, 100, 39.
-
(2000)
Chem. Rev.
, vol.100
, pp. 39
-
-
Bourissou, D.1
Guerret, O.2
Gabbaï, F.P.3
Bertrand, G.4
-
70
-
-
12144269201
-
-
(j) Cesar, V.; Bellemin-Laponnaz, S.; Gade, L. H. Chem. Soc. Rev. 2004, 33, 619.
-
(2004)
Chem. Soc. Rev.
, vol.33
, pp. 619
-
-
Cesar, V.1
Bellemin-Laponnaz, S.2
Gade, L.H.3
-
75
-
-
33746618113
-
-
note
-
Under a different set of reaction conditions (t-BuOH, DBU, THF) and using two equivalents of electrophilic aldehyde, Bode et al. reported improved yields: ref. 7d.
-
-
-
-
76
-
-
33746632276
-
-
note
-
25 This data can be obtained free of charge from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK; Fax: +44 (1223)336033; e-mail: deposit@ccdc.cam.ac.uk.
-
-
-
-
77
-
-
33746646540
-
-
note
-
Bode et al. found that when using cis-cinnamaldehyde the same stereochemical outcome as with trans-cinnamaldehyde was observed. Moreover, stopping the reaction of cis-cinnamaldehyde prior to completion a significant amount of trans-cinnamaldehyde was observed, showcasing the importance of homoenolate resonance structure lib: ref. 7d.
-
-
-
-
78
-
-
0036434263
-
-
(a) Glorius, F.; Altenhoff, G.; Goddard, R.; Lehmann, C. Chem. Commun. 2002, 2704. For the successful application of these ligands in the Suzuki cross-coupling of sterically hindered aryl chlorides, see:
-
(2002)
Chem. Commun.
, pp. 2704
-
-
Glorius, F.1
Altenhoff, G.2
Goddard, R.3
Lehmann, C.4
-
79
-
-
0042969355
-
-
(b) Altenhoff, G.; Goddard, R.; Lehmann, C. W.; Glorius, F. Angew. Chem. Int. Ed. 2003, 42, 3690.
-
(2003)
Angew. Chem. Int. Ed.
, vol.42
, pp. 3690
-
-
Altenhoff, G.1
Goddard, R.2
Lehmann, C.W.3
Glorius, F.4
-
80
-
-
9344240844
-
-
(c) Altenhoff, G.; Goddard, R.; Lehmann, C. W.; Glorius, F. J. Am. Chem. Soc. 2004, 126, 15195.
-
(2004)
J. Am. Chem. Soc.
, vol.126
, pp. 15195
-
-
Altenhoff, G.1
Goddard, R.2
Lehmann, C.W.3
Glorius, F.4
-
81
-
-
33746599611
-
-
note
-
Crotonaldehyde and a-methylcinnamaldehyde were reported to be unreactive under the conditions employed by Bode et al.: ref. 7 of ref. 7d.
-
-
-
-
83
-
-
0007884745
-
-
For the first step of the synthesis of aldehyde 23, see: (a) Boatman, S.; Harris, T. M.; Hauser, C. R. J. Org. Chem. 1965, 30, 3321. For the Heck reaction methodology used in the second step, see:
-
(1965)
J. Org. Chem.
, vol.30
, pp. 3321
-
-
Boatman, S.1
Harris, T.M.2
Hauser, C.R.3
-
84
-
-
0038824420
-
-
(b) Battistuzzi, G.; Cacchi, S.; Fabrizi, G. Org. Lett. 2003, 5, 777.
-
(2003)
Org. Lett.
, vol.5
, pp. 777
-
-
Battistuzzi, G.1
Cacchi, S.2
Fabrizi, G.3
-
85
-
-
0001650729
-
-
Stott, K.; Keeler, J.; Van Q, N.; Shaka, A. J. J. Magn. Reson. 1997, 125, 302.
-
(1997)
J. Magn. Reson.
, vol.125
, pp. 302
-
-
Stott, K.1
Keeler, J.2
Van, Q.N.3
Shaka, A.J.4
-
87
-
-
33746604938
-
-
note
-
(a) Lehmann, C. W. private communication to the Cambridge Structural Database (2004), deposition numbers CCDC-246600 and 250238.
-
-
-
-
88
-
-
33746594729
-
-
note
-
(b) Harms, K. private communication to the Cambridge Structural Database (2006), deposition numbers CCDC-603356 and 603357.
-
-
-
|