名称:
A novel entry to substituted chromones and furochromones through cyclopropane intermediates.
摘要:
Addition of several carbon nucleophiles to 3-bromochromone 1 and 6-bromofurochromone 2 yield interestingly substituted delta-pyrone ring analogues.
DOI:
10.1016/s0040-4039(00)91843-4