List the procedural steps, from start to finish, that are required in the sodium borohydride reduction of camphor to isoborneol.
1. dissolve camphor in ethanol in an erlenmeyer flask
2. carefully add an excess of sodium borohydride
3. let the reaction mixture stand for 10 mins
4. heat to a gentle boil for 10 mins
5. pour reaction mixture in a beaker of ice water
6. collect the precipitate by vacuum filtration, and blot dry
7. recrystallize from methanol and water