Tetrahydrofuran → HCID 15713913, compound

Participants

Reaction Steps

To 20 ml of an anhydrous THF suspension containing 644 mg of lithium aluminum hydride was slowly added 20 ml of an anhydrous THF solution containing 2.0 g of 2-acetoxy-4-(1,2-epoxy-2,5,5-trimethylcyclopentyl)but-3-yn under ice-cooling in a nitrogen atmosphere over 10 minutes. After the addition, the mixture was placed under refluxing conditions and stirred for 10 hours. After completion of the reaction, the reaction mixture was cooled, and 0.6 ml of water, 0.6 ml of a 15% sodium hydroxide aqueous solution, and 1.8 ml of water were carefully added thereto in this order, followed by vigorously stirring for 20 minutes. Any insoluble matter was removed by filtration with suction, and the filtrate was concentrated under reduced pressure. The resulting solid was purified by silica gel column chromatography to obtain 1.2 g (yield: 70%) of 4-(2-hydroxy-2,5,5-trimethylcyclopentylidene)but-3-en-2-ol.

Provenance & Evidence