Hydrochloric Acid → 2-Cyclopenten-1-one, 2-pentyl-

In accordance with Example 6, the reaction with dropping addition was carried out by using 7.42 g (0.080 mol) of 3-picoline and 5.54 g (0.053 mol) of a 35% hydrochloric acid. After the dropping addition was finished, the resultant mixture was stirred for 5 hours under heating at the same temperature. After the reaction was finished, the mixture was cooled to the room temperature and neutralized with an aqueous solution of sodium hydroxide. Then, the resultant organic layer was analyzed in the same manner as in Example 1. As the result, 65.2 g of 2-pentyl-2-cyclopentenone were obtained (yield: 80.8%).

1. customIn accordance with Example 6, the reaction
2. additionaddition
3. additionAfter the dropping addition
4. temperatureunder heating at the same temperature

ORD record

ord-258f8d6b955d4ecf994413088fb18083

Source dataset

uspto-grants-2002_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06500990B2