反应详情

Acetic anhydride (62.3 g) was added to a solution of 7-hydroxy-3-methoxybicyclo[4,3,0]non-3-ene (51.4 g; prepared as described in Reference Example 2) in pyridine (166 ml), and the mixture was left to stand at the ambient temperature for 60 hours. Concentration under reduced pressure gave 7-acetoxy-3-methoxybicyclo[4,3,0]non-3-ene (58.9 g).

1. waitthe mixture was left
2. concentrationConcentration under reduced pressure