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Org. Lett.
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, pp. 1591-1594
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Churruca, F.1
SanMartin, R.2
Tellitu, I.3
Dominguez, E.4
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49
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0034127063
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New accounts about the critical role of anions and the real structure of the catalytic species in th Heck reaction have ruled out most textbook mechanisms, suggesting new catalytic cycles to be considered. See: Amatore, C.; Jutand, A. Acc. Chem. Res. 2000, 33, 314-321.
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Acc. Chem. Res.
, vol.33
, pp. 314-321
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Amatore, C.1
Jutand, A.2
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50
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0141552207
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note
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4Br (1.82 mmol), and diaryl pyrazole 4 (1.80 mmol) under argon at room temperature. After the tube was closed, it was heated to 110°C for 6-24 h until TLC showed the completion of the reaction. After cooling, the crude was poured onto an ice (5 g)/water (20 mL) mixture. The aqueous layer was extracted with diethyl ether (3 x 20 mL), and the combined organic layers were dried over anhydrous sodium sulfate and evaporated under reduced pressure to give a residue that was purified by flash chromatography on silicagel with 5-20% EtOAc/hexane as eluent.
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51
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0141775516
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note
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Although no detailed mechanism for this type of arylation has been proposed so far, reductive elimination of palladacycle intermediates is usually assumed as the last step of the mechanistic pathway. See ref 2a for more details.
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52
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0028209470
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Normally such an aryl halide moiety is part of a benzamide or a benzoate framework. See, for example, refs 2c and 2d. See also: (a) Hosoya, T.; Takashiro, E.; Matsumoto, T.; Suzuki, K. J. Am. Chem. Soc. 1994, 116, 1004-1015. (b) Kitamura, M.; Ohmori, K.; Kawase, T.; Suzuki, K. Angew. Chem., Int. Ed. 1999, 38, 1229-1232. (c) Harayama, T.; Akiyama, T.; Nakano, Y.; Shibaike, K.; Akamatsu, H.; Hori, A.; Abe, H.; Takeuchi, Y. Synthesis 2002, 237-241.
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(1994)
J. Am. Chem. Soc.
, vol.116
, pp. 1004-1015
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Hosoya, T.1
Takashiro, E.2
Matsumoto, T.3
Suzuki, K.4
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53
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0033519228
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Normally such an aryl halide moiety is part of a benzamide or a benzoate framework. See, for example, refs 2c and 2d. See also: (a) Hosoya, T.; Takashiro, E.; Matsumoto, T.; Suzuki, K. J. Am. Chem. Soc. 1994, 116, 1004-1015. (b) Kitamura, M.; Ohmori, K.; Kawase, T.; Suzuki, K. Angew. Chem., Int. Ed. 1999, 38, 1229-1232. (c) Harayama, T.; Akiyama, T.; Nakano, Y.; Shibaike, K.; Akamatsu, H.; Hori, A.; Abe, H.; Takeuchi, Y. Synthesis 2002, 237-241.
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(1999)
Angew. Chem. Int. Ed.
, vol.38
, pp. 1229-1232
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Kitamura, M.1
Ohmori, K.2
Kawase, T.3
Suzuki, K.4
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54
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0036159685
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Normally such an aryl halide moiety is part of a benzamide or a benzoate framework. See, for example, refs 2c and 2d. See also: (a) Hosoya, T.; Takashiro, E.; Matsumoto, T.; Suzuki, K. J. Am. Chem. Soc. 1994, 116, 1004-1015. (b) Kitamura, M.; Ohmori, K.; Kawase, T.; Suzuki, K. Angew. Chem., Int. Ed. 1999, 38, 1229-1232. (c) Harayama, T.; Akiyama, T.; Nakano, Y.; Shibaike, K.; Akamatsu, H.; Hori, A.; Abe, H.; Takeuchi, Y. Synthesis 2002, 237-241.
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(2002)
Synthesis
, pp. 237-241
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Harayama, T.1
Akiyama, T.2
Nakano, Y.3
Shibaike, K.4
Akamatsu, H.5
Hori, A.6
Abe, H.7
Takeuchi, Y.8
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55
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0141663629
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note
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Further mechanistic discussions about the role of the pyrazole nucleus and possible chelating effects will be published elsewhere.
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56
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0036739034
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Celecoxib has been reported to be a selective cyclo-oxygenase-2 (COX-2) inhibitor, with remarkable antiinflammatory, analgesic, and antipyretic activities associated with a high degree of gastrointestinal safety. Other applications of this drug include the treatment of preterm labor, osteoarthritis and rheumatoid arthritis, inflammatory bowel disease, and duodenal polyposis in familial adenomatous polyposis, or preventing pain after otolaryngologic surgery. See: (a) Stika, C. S.; Gross, G. A.; Leguizamon, G.; Gerber, S.; Levy, R.; Mathur, A.; Bernhard, L. M.; Nelson, D. M.; Sadovsky, Y. Am. J. Obstet. Gynecol. 2002, 187, 653-660. (b) Dilger, K.; Herrlinger, C.; Peters, J.; Seyberth, H. W.; Schweer, H.; Klotz, U. J. Clin. Pharmacol. 2002, 42, 985-994. (c) Woessner, K. M.; Simon, R. A.; Stevenson, D. D. Arthritis Rheum. 2002, 46, 2201-2206.
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(2002)
Am. J. Obstet. Gynecol.
, vol.187
, pp. 653-660
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Stika, C.S.1
Gross, G.A.2
Leguizamon, G.3
Gerber, S.4
Levy, R.5
Mathur, A.6
Bernhard, L.M.7
Nelson, D.M.8
Sadovsky, Y.9
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57
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0036708025
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Celecoxib has been reported to be a selective cyclo-oxygenase-2 (COX-2) inhibitor, with remarkable antiinflammatory, analgesic, and antipyretic activities associated with a high degree of gastrointestinal safety. Other applications of this drug include the treatment of preterm labor, osteoarthritis and rheumatoid arthritis, inflammatory bowel disease, and duodenal polyposis in familial adenomatous polyposis, or preventing pain after otolaryngologic surgery. See: (a) Stika, C. S.; Gross, G. A.; Leguizamon, G.; Gerber, S.; Levy, R.; Mathur, A.; Bernhard, L. M.; Nelson, D. M.; Sadovsky, Y. Am. J. Obstet. Gynecol. 2002, 187, 653-660. (b) Dilger, K.; Herrlinger, C.; Peters, J.; Seyberth, H. W.; Schweer, H.; Klotz, U. J. Clin. Pharmacol. 2002, 42, 985-994. (c) Woessner, K. M.; Simon, R. A.; Stevenson, D. D. Arthritis Rheum. 2002, 46, 2201-2206.
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(2002)
J. Clin. Pharmacol.
, vol.42
, pp. 985-994
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Dilger, K.1
Herrlinger, C.2
Peters, J.3
Seyberth, H.W.4
Schweer, H.5
Klotz, U.6
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58
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0036676087
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Celecoxib has been reported to be a selective cyclo-oxygenase-2 (COX-2) inhibitor, with remarkable antiinflammatory, analgesic, and antipyretic activities associated with a high degree of gastrointestinal safety. Other applications of this drug include the treatment of preterm labor, osteoarthritis and rheumatoid arthritis, inflammatory bowel disease, and duodenal polyposis in familial adenomatous polyposis, or preventing pain after otolaryngologic surgery. See: (a) Stika, C. S.; Gross, G. A.; Leguizamon, G.; Gerber, S.; Levy, R.; Mathur, A.; Bernhard, L. M.; Nelson, D. M.; Sadovsky, Y. Am. J. Obstet. Gynecol. 2002, 187, 653-660. (b) Dilger, K.; Herrlinger, C.; Peters, J.; Seyberth, H. W.; Schweer, H.; Klotz, U. J. Clin. Pharmacol. 2002, 42, 985-994. (c) Woessner, K. M.; Simon, R. A.; Stevenson, D. D. Arthritis Rheum. 2002, 46, 2201-2206.
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(2002)
Arthritis Rheum.
, vol.46
, pp. 2201-2206
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Woessner, K.M.1
Simon, R.A.2
Stevenson, D.D.3
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