-
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0002667764
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For scope and mechanistic details on the Mitsunobu reaction, see: (b) Mitsunobu, O. Synth. 1981, 1, 1. (c) Hughes, D. L. The Mitsunobu Reaction. Organic Reactions; John Wiley and Sons, Inc.: 1992; Vol. 42, p 335. (d) Hughes, D. L.; Reamer, R. A.; Bergan, J. J.; Grabowski, E. J. J. J. Am. Chem. Soc. 1988, 110, 6487. (e) Hughes, D. L. Org. Prep. Proc. Int. 1996, 28, 129. (f) Hughes, D. L.; Reamer, R. A. J. Org. Chem. 1996, 61, 2967.
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0001640928
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For scope and mechanistic details on the Mitsunobu reaction, see: (b) Mitsunobu, O. Synth. 1981, 1, 1. (c) Hughes, D. L. The Mitsunobu Reaction. Organic Reactions; John Wiley and Sons, Inc.: 1992; Vol. 42, p 335. (d) Hughes, D. L.; Reamer, R. A.; Bergan, J. J.; Grabowski, E. J. J. J. Am. Chem. Soc. 1988, 110, 6487. (e) Hughes, D. L. Org. Prep. Proc. Int. 1996, 28, 129. (f) Hughes, D. L.; Reamer, R. A. J. Org. Chem. 1996, 61, 2967.
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24
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0022059756
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The product has also been removed by pH-controlled extraction from the Mitsunobu byproducts: King, M. L.; Forman, A. L.; Orella, C.; Pines, S. H. Chem. Eng. Prog. 1985, 36.
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0012555288
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-
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30
-
-
85033813325
-
-
note
-
Small amounts of the 3,4- and 4,5-dehydroproline impurities were detected, along with impurities similar to compound 4 in ref 1a.
-
-
-
-
31
-
-
85033828284
-
-
note
-
Refluxing overnight decreased the ratio to ca. 92:8, probably due to epimerization a to the methyl ester. The absolute stereochemistry of the trans-mesylate ester detected in this Mitsunobu reaction is not known.
-
-
-
-
32
-
-
0000556694
-
-
Conducting the Mitsunobu reaction in toluene probably promotes the crystallization of the complex, as toluene has been shown to be a suitable solvent for crystallization of weakly acidic compounds with triphenylphosphine oxide: Etter, M. C; Baures, P. W. J. Am. Chem. Soc. 1988, 110, 639.
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-
Etter, M.C.1
Baures, P.W.2
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33
-
-
85033815512
-
-
note
-
Coordinates for the X-ray determinations have been deposited in the Cambridge Crystallographic Database and can be obtained upon request from the Director, Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge, CB2 1EZ, U.K.
-
-
-
-
34
-
-
0000452219
-
-
AHLPRO
-
Shamala, N.; Row, T. N. G.; Venkatesan, K. Acta Crystallogr., B 1976, 32, 3267 (AHLPRO). All referenced crystal structures were retrieved from the Cambridge Structural Database, April 1996 release (CSD: Allen, F. H.; Davies, J. E.; Galloy, J. J.; Johnson, O.; Kennard, O.; Macrae, C. F., Mitchell, E. M.; Mitchell, G.F.; Smith, J. M.; Watson, D. G. J. Chem. Inf. Comp. Sci. 1991, 31, 187-204). CSD refcodes are included at the end of each reference.
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Acta Crystallogr., B
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Shamala, N.1
Row, T.N.G.2
Venkatesan, K.3
-
35
-
-
0041936278
-
-
Shamala, N.; Row, T. N. G.; Venkatesan, K. Acta Crystallogr., B 1976, 32, 3267 (AHLPRO). All referenced crystal structures were retrieved from the Cambridge Structural Database, April 1996 release (CSD: Allen, F. H.; Davies, J. E.; Galloy, J. J.; Johnson, O.; Kennard, O.; Macrae, C. F., Mitchell, E. M.; Mitchell, G.F.; Smith, J. M.; Watson, D. G. J. Chem. Inf. Comp. Sci. 1991, 31, 187-204). CSD refcodes are included at the end of each reference.
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Allen, F.H.1
Davies, J.E.2
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Kennard, O.5
Macrae, C.F.6
Mitchell, E.M.7
Mitchell, G.F.8
Smith, J.M.9
Watson, D.G.10
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36
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0028578769
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YIHJEE
-
Palkowitz, A. D.; Steinberg, M. I.; Thrasher, K. J.; Reel, J. K.; Hauser, K L.; Zimmerman, K. M.; Wiest, S. A.; Whitesitt, C. A.; Simon, R. L.; Pfeifer, W.; Lifer, S. L.; Boyd, D. B.; Barnett, C. J.; Wilson, T. M.; Deeter, J. B.; Takeuchi, K.; Riley, R.E.; Miller, W. D.; Marshall, W. S. J. Med. Chem. 1994 37, 4508 (YIHJEE).
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Simon, R.L.9
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Barnett, C.J.13
Wilson, T.M.14
Deeter, J.B.15
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Riley, R.E.17
Miller, W.D.18
Marshall, W.S.19
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JATZIN
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Cerrini, S.; Lamba, D.; Scatturin, A.; Rossi, C.; Ughetto, G. Biopolymers 1989, 28, 409 (JATZIN).
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39
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0021093584
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CEDREI and CEDRAE
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Flippen-Anderson, J. L.; Gilardi, R.; Karle, I. L.; Frey, M. H.; Opella, S. J.; Gierasch, L. M.; Goodman, M.; Madison, V.; Delaney, N. G. J. Am. Chem. Soc. 1983, 105, 6609 (CEDREI and CEDRAE).
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Goodman, M.7
Madison, V.8
Delaney, N.G.9
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40
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0000778143
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VUCJEI
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Yanagi, K.; Takeuchi, Y.; Sunagawa, M. Acta Crystallogr., Sect. C 1992, 48, 1737 (VUCJEI).
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0342710036
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Leban, I.; Golic, L.; Resman, A.; Zmitek, J. Acta Chim. Slav. 1994, 41, 405 (SUPBIO).
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42
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3342909220
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CXPROL
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Dupont, L.; Lamotte, J.; Campsteyn, H.; Vermeire, M.; Welter, A. Acta Crystallogr., Sect. B 1978, 34, 850 (CXPROL).
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Dupont, L.1
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43
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0344034932
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Bernardinelli, G.; Tronchet, J. M. J.; Jorand, C. Z. Kristallogr. 1991, 195, 129 (SIYYOO).
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44
-
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0013434690
-
-
HOPROL12
-
Seven of eight such trans-4-hydroxyproline structures have an axial OH (e.g. Koetzle, T. F.; Lehmann, M. S.; Hamilton, W. C. Acta Crystallogr., Sect. B 1973, 29, 231 (HOPROL12). Hospital, M.; Courseille, C.; Leroy, F.; Roques, B. P. Biopolymers, 1979, 18, 1141 (NAHYPL, or N-acetyl-trans-4-hydroxyproline). Garbay-Jaureguiberry, C.; Arnoux, B.; Prange, T.; Wehri-Altenburger, S.; Pascard, C.; Roques, B. P. J. Am. Chem. Soc. 1980, 102, 1827 (GLHPRC, or prolylhydroxyproline)). The last reference also contains the exception: the hydroxyl is pseudoequatorial in glycyl-L-4-hydroxyproline (GLHPRA). Intermediate conformations occur in two mono- and di-N-alkylated derivatives: Jones, G. P.; Naidu, B. P.; Paleg, L. G.; Tiekink, E. R. T. Acta Crystallogr. Sect. C 1988, 44, 2208 (GOJMAT and GOJMEX).
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-
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Koetzle, T.F.1
Lehmann, M.S.2
Hamilton, W.C.3
-
45
-
-
84985702835
-
-
NAHYPL, or N-acetyl-trans-4-hydroxyproline
-
Seven of eight such trans-4-hydroxyproline structures have an axial OH (e.g. Koetzle, T. F.; Lehmann, M. S.; Hamilton, W. C. Acta Crystallogr., Sect. B 1973, 29, 231 (HOPROL12). Hospital, M.; Courseille, C.; Leroy, F.; Roques, B. P. Biopolymers, 1979, 18, 1141 (NAHYPL, or N-acetyl-trans-4-hydroxyproline). Garbay-Jaureguiberry, C.; Arnoux, B.; Prange, T.; Wehri-Altenburger, S.; Pascard, C.; Roques, B. P. J. Am. Chem. Soc. 1980, 102, 1827 (GLHPRC, or prolylhydroxyproline)). The last reference also contains the exception: the hydroxyl is pseudoequatorial in glycyl-L-4-hydroxyproline (GLHPRA). Intermediate conformations occur in two mono- and di-N-alkylated derivatives: Jones, G. P.; Naidu, B. P.; Paleg, L. G.; Tiekink, E. R. T. Acta Crystallogr. Sect. C 1988, 44, 2208 (GOJMAT and GOJMEX).
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, vol.18
, pp. 1141
-
-
Hospital, M.1
Courseille, C.2
Leroy, F.3
Roques, B.P.4
-
46
-
-
0000091292
-
-
GLHPRC, or prolylhydroxyproline
-
Seven of eight such trans-4-hydroxyproline structures have an axial OH (e.g. Koetzle, T. F.; Lehmann, M. S.; Hamilton, W. C. Acta Crystallogr., Sect. B 1973, 29, 231 (HOPROL12). Hospital, M.; Courseille, C.; Leroy, F.; Roques, B. P. Biopolymers, 1979, 18, 1141 (NAHYPL, or N-acetyl-trans-4-hydroxyproline). Garbay-Jaureguiberry, C.; Arnoux, B.; Prange, T.; Wehri-Altenburger, S.; Pascard, C.; Roques, B. P. J. Am. Chem. Soc. 1980, 102, 1827 (GLHPRC, or prolylhydroxyproline)). The last reference also contains the exception: the hydroxyl is pseudoequatorial in glycyl-L-4-hydroxyproline (GLHPRA). Intermediate conformations occur in two mono- and di-N-alkylated derivatives: Jones, G. P.; Naidu, B. P.; Paleg, L. G.; Tiekink, E. R. T. Acta Crystallogr. Sect. C 1988, 44, 2208 (GOJMAT and GOJMEX).
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J. Am. Chem. Soc.
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-
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Garbay-Jaureguiberry, C.1
Arnoux, B.2
Prange, T.3
Wehri-Altenburger, S.4
Pascard, C.5
Roques, B.P.6
-
47
-
-
0007309563
-
-
GOJMAT and GOJMEX
-
Seven of eight such trans-4-hydroxyproline structures have an axial OH (e.g. Koetzle, T. F.; Lehmann, M. S.; Hamilton, W. C. Acta Crystallogr., Sect. B 1973, 29, 231 (HOPROL12). Hospital, M.; Courseille, C.; Leroy, F.; Roques, B. P. Biopolymers, 1979, 18, 1141 (NAHYPL, or N-acetyl-trans-4-hydroxyproline). Garbay-Jaureguiberry, C.; Arnoux, B.; Prange, T.; Wehri-Altenburger, S.; Pascard, C.; Roques, B. P. J. Am. Chem. Soc. 1980, 102, 1827 (GLHPRC, or prolylhydroxyproline)). The last reference also contains the exception: the hydroxyl is pseudoequatorial in glycyl-L-4-hydroxyproline (GLHPRA). Intermediate conformations occur in two mono- and di-N-alkylated derivatives: Jones, G. P.; Naidu, B. P.; Paleg, L. G.; Tiekink, E. R. T. Acta Crystallogr. Sect. C 1988, 44, 2208 (GOJMAT and GOJMEX).
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Acta Crystallogr. Sect. C
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-
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Jones, G.P.1
Naidu, B.P.2
Paleg, L.G.3
Tiekink, E.R.T.4
-
48
-
-
85033812783
-
-
note
-
DIAD purity may be determined by dissolving a standardized amount of triphenylphosphine in acetonitrile containing 0.2% acetic acid and titrating with DIAD until the yellow-orange color remains.
-
-
-
-
50
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-
85033808801
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note
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4), 215 nm. Typical retention times: 1, 10.4 min; 2, 16.7 min; 3, 7.6 min; 4, 18.0 min; 5, 8.0 min.
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51
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85033816939
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note
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YMC Basic 25 cm column, eluted at 1.0 mL/min with 50:50 acetonitrile:0.01 M ammonium phosphate, acidified to pH 4 after mixing, monitored at 210 nm. Typical retention times: 1, 3.7 min; ester intermediate, 8.5 min; 6, 5.6 min.
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