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Volumn 10, Issue 6, 1999, Pages 1135-1143

Highly regio- and stereoselective iodocyclization of chiral 3- alkoxycarbonyl-4-propenyl-2,2-dimethyl-1,3-oxazolidines: A computational investigation

Author keywords

[No Author keywords available]

Indexed keywords

OXAZOLIDINE DERIVATIVE;

EID: 0038607281     PISSN: 09574166     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0957-4166(99)00084-1     Document Type: Article
Times cited : (21)

References (39)
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    • note
    • No reaction was observed starting from both (R)-3-benzyloxycarbonyl-2,2-dimethyl-4-(1-propenyl)-1,3-oxazolidine and (E,R)-3-benzyloxycarbonyl-2,2-dimethyl-4-(2-ethoxycarbonylethenyl)-1,3- oxazolidine. This result was surprising, in comparison with those reported for analogous systems (see Ref. 2e and h), although an explanation seems rather difficult to find.
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    • 2,3 3.5 Hz); whereas the (S)-configuration for the stereogenic center in the side chain was tentatively assigned from mechanistic considerations, by assuming an anti-addition mechanism to the Z-double bond. (matrix presented) For recent references concerning 4-exo closure leading to oxetanes, see: (a) Galatsis, P.; Millan, S. D.; Nechala, P.; Ferguson, G. J. Org. Chem. 1994, 59, 6643-6651. (b) Barks, J. M.; Knight, D. W. Tetrahedron Lett. 1996, 35, 7259-7262. (c) Jung, M. E.; Nichols, C. J. Tetrahedron Lett. 1996, 36, 7667-7670. (d) Galatsis, P.; Millan, S. D.; Ferguson, G. J. Org. Chem. 1997, 62, 5048-5056.
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    • 2,3 3.5 Hz); whereas the (S)-configuration for the stereogenic center in the side chain was tentatively assigned from mechanistic considerations, by assuming an anti-addition mechanism to the Z-double bond. (matrix presented) For recent references concerning 4-exo closure leading to oxetanes, see: (a) Galatsis, P.; Millan, S. D.; Nechala, P.; Ferguson, G. J. Org. Chem. 1994, 59, 6643-6651. (b) Barks, J. M.; Knight, D. W. Tetrahedron Lett. 1996, 35, 7259-7262. (c) Jung, M. E.; Nichols, C. J. Tetrahedron Lett. 1996, 36, 7667-7670. (d) Galatsis, P.; Millan, S. D.; Ferguson, G. J. Org. Chem. 1997, 62, 5048-5056.
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