Triethylsilyl triflate-promoted skeletal rearrangement of bottrospicatols
摘要:
Treatment of diastereomeric (1R,5R,6R)- and (1R,5R,6S)-6-hydroxymethyl-2,6-dimethyl-7-oxabicyclo[3.2.1]oct-2-enes with Et3SiOTf leads to scalemic (1R,5R,6R)- and (1R,5R,65)-6-hydroxy-2,6-dimethyl-8-oxabicyclo[3.3.1]non-2-enes.