Diastereoselective synthesis of bis(3,5)pyrazolophanes by sequential inter- and intramolecular cycloadditions of homochiral nitrilimines
摘要:
Starting from ethyl (S)-lactate as the chiral unit, we have developed the synthesis of the enantiopure bis(3,5)pyrazolophanes 9 and 19 by means of sequential inter- and intramolecular cycloadditions of nitrilimine intermediates. (C) 2000 Elsevier Science Ltd. All rights reserved.
Diastereoselective synthesis of bis(3,5)pyrazolophanes by sequential inter- and intramolecular cycloadditions of homochiral nitrilimines
摘要:
Starting from ethyl (S)-lactate as the chiral unit, we have developed the synthesis of the enantiopure bis(3,5)pyrazolophanes 9 and 19 by means of sequential inter- and intramolecular cycloadditions of nitrilimine intermediates. (C) 2000 Elsevier Science Ltd. All rights reserved.
Starting from ethyl (S)-lactate as the chiral unit, we have developed the synthesis of the enantiopure bis(3,5)pyrazolophanes 9 and 19 by means of sequential inter- and intramolecular cycloadditions of nitrilimine intermediates. (C) 2000 Elsevier Science Ltd. All rights reserved.