Results Bicyclo [3.2. l] oct-6-en-3-one (1) was prepared through the ring expansion of norbornadiene by the methods of Moore, Moser, and La Prade6 and LeBel and Liesemer. 7 Reduction of 1 with a large excess of sodium in ethanol afforded a mixture of exo-and endo- bicyclo [3.2. l] oct-6-en-3-01s (see Scheme I). 8 Analysis of the alcohol mixture by gc showed it to be 95% 2a and 5% of its endo epimer.
![bicyclo[3.2.1]oct-6-en-3-one结构式](https://image.chemsrc.com/caspic/445/3721-60-6.png)
![exo-Bicyclo[3.2.1]oct-6-en-3-ol结构式](https://image.chemsrc.com/caspic/345/37880-86-7.png)
![2-(endo-Bicyclo[3.2.1]oct-6-en-3-yl)ethyl-chlorid结构式](https://image.chemsrc.com/caspic/441/37881-21-3.png)
