-
2
-
-
0036027099
-
-
H. M. Osborn, N. Gemmell and L. M. Harwood, J. Chem. Soc., Perkin Trans. 1, 2002, 2419.
-
(2002)
J. Chem. Soc., Perkin Trans. 1
, pp. 2419
-
-
Osborn, H.M.1
Gemmell, N.2
Harwood, L.M.3
-
3
-
-
0035932573
-
-
For some examples of the asymmetric total syntheses of biologically important compounds, see: (a) H. Ooi, A. Urushibara, T. Esumi, Y. Iwabuchi and S. Hatakeyama, Org. Lett., 2001, 3, 953;
-
(2001)
Org. Lett.
, vol.3
, pp. 953
-
-
Ooi, H.1
Urushibara, A.2
Esumi, T.3
Iwabuchi, Y.4
Hatakeyama, S.5
-
4
-
-
0037165358
-
-
(b) K. Nagasawa, A. Georgieva, H. Koshino, T. Nakata, T. Kita and Y. Hashimoto, Org. Lett., 2002, 4, 177.
-
(2002)
Org. Lett.
, vol.4
, pp. 177
-
-
Nagasawa, K.1
Georgieva, A.2
Koshino, H.3
Nakata, T.4
Kita, T.5
Hashimoto, Y.6
-
6
-
-
0034674969
-
-
(b) T. Ishikawa, T. Kudo, K. Shigemori and S. Saito, J. Am. Chem. Soc., 2000, 122, 7633:
-
(2000)
J. Am. Chem. Soc.
, vol.122
, pp. 7633
-
-
Ishikawa, T.1
Kudo, T.2
Shigemori, K.3
Saito, S.4
-
8
-
-
0035799890
-
-
(a) A. Goti, M. Cacciarini, F. Cardona, F. M. Cordero and A. Brandi, Org. Lett., 2001, 3, 1367;
-
(2001)
Org. Lett.
, vol.3
, pp. 1367
-
-
Goti, A.1
Cacciarini, M.2
Cardona, F.3
Cordero, F.M.4
Brandi, A.5
-
9
-
-
0036084209
-
-
(b) see also: F. M. Cordero, F. Pisaneschi, M. Gensini, A. Goti and A. Brandi, Eur. J. Org. Chem., 2002, 1941;
-
(2002)
Eur. J. Org. Chem.
, pp. 1941
-
-
Cordero, F.M.1
Pisaneschi, F.2
Gensini, M.3
Goti, A.4
Brandi, A.5
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11
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19944372988
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note
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We also observed the complete racemization of the stereogenic chiral centre of the optically pure 2 during its Mitsunobu reaction with 3 and its treatment with p-TsOH.
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12
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19944387535
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note
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We have discovered that the acetate of (5)-2 is stable against racemization under common basic conditions as well as acidic conditions at room temperature.
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13
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0037120158
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(a) S. Akai, T. Naka, S. Omura, K. Tanimoto, M. Imanishi, Y. Takebe, M. Matsugi and Y. Kita, Chem. Eur. J., 2002, 8, 4255;
-
(2002)
Chem. Eur. J.
, vol.8
, pp. 4255
-
-
Akai, S.1
Naka, T.2
Omura, S.3
Tanimoto, K.4
Imanishi, M.5
Takebe, Y.6
Matsugi, M.7
Kita, Y.8
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14
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4544322972
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-
(b) S. Akai, K. Tanimoto and Y. Kita, Angew. Chem. Int. Ed., 2004, 43, 1407.
-
(2004)
Angew. Chem. Int. Ed.
, vol.43
, pp. 1407
-
-
Akai, S.1
Tanimoto, K.2
Kita, Y.3
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16
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19944398991
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note
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CAL-B [Chirazyme® L-2, c.-f. C2, dry (12900 U/g lyo.)], a lipase immobilized on a polymer support, was used, which is commercially available from Roche Diagnostics GmbH. The same lipase is also on sale from Novozymes Inc. by the name NOVOZYM 435®. The commercial lipase was dried (1 mmHg, room temperature, overnight) prior to use.
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18
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0033435238
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The oxidation of (±)-12 to (±)-13 was based on: H. Ohtake, Y. Imada and S. Murahashi, Bull. Chem. Soc. Jpn, 1999, 72, 2737.
-
(1999)
Bull. Chem. Soc. Jpn.
, vol.72
, pp. 2737
-
-
Ohtake, H.1
Imada, Y.2
Murahashi, S.3
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19
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0004982288
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K. Tatsuta, H. Takahashi, Y. Amemiya and M. Kinoshita, J. Am. Chem. Soc., 1983, 105, 4096.
-
(1983)
J. Am. Chem. Soc.
, vol.105
, pp. 4096
-
-
Tatsuta, K.1
Takahashi, H.2
Amemiya, Y.3
Kinoshita, M.4
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20
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19944367176
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note
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7b in either acetone or MeCN caused racemization; however, its combination with the enzymatic domino reaction of (±)-2 resulted in an unsatisfactory yield (ca. 30%) mainly due to the Ru-catalyzed decomposition of 5.
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