Activation of the reverse-Cope elimination by allylic oxygen functions: Syntheses of (−)-hygroline and (+)-pseudohygroline
摘要:
Reverse-Cope cyclisations of N-(4-alkenyl)hydroxylamines 8 are accelerated by the presence of the allylic oxygen function; this has been applied to a brief synthesis of the alkaloids (-)-hygroline 6 and (+)-pseudohygroline 7 (C) 1999 Elsevier Science Ltd. Ali rights reserved.
Activation of the reverse-Cope elimination by allylic oxygen functions: Syntheses of (−)-hygroline and (+)-pseudohygroline
摘要:
Reverse-Cope cyclisations of N-(4-alkenyl)hydroxylamines 8 are accelerated by the presence of the allylic oxygen function; this has been applied to a brief synthesis of the alkaloids (-)-hygroline 6 and (+)-pseudohygroline 7 (C) 1999 Elsevier Science Ltd. Ali rights reserved.