反应详情

In a 2 L four-necked flask, 1,000 g of longifolene (manufactured by Yasuhara Chemical Co., Ltd.) and 100 g of bromoacetic acid were placed and reacted at 170° C. for 18 hours. The reaction mixture was washed with a saturated aqueous sodium hydrogen carbonate solution and with water and then refined by distillation. Thereafter, the refined product was placed in a 2 L autoclave together with 18 g of a palladium-carbon hydrogenation catalyst and subjected to hydrogenation (hydrogen pressure: 6 MPa, reaction temperature: 100° C., reaction time: 2 hours). After completion of the reaction, the catalyst was removed by filtration. The filtrate was subjected to fractional distillation to obtain 200 g of the desired 4-isopropyl-1,7a-dimethyl-octahydro-1,4-methano-indene (Fluid 3). The results of the measurements of the properties and the traction coefficient are shown in Table 1.

1. customreacted at 170° C. for 18 hours
2. washThe reaction mixture was washed with a saturated aqueous sodium hydrogen carbonate solution and with water
3. distillationrefined by distillation
4. customsubjected to hydrogenation (hydrogen pressure: 6 MPa, reaction temperature: 100° C., reaction time: 2 hours)
5. customAfter completion of the reaction
6. customthe catalyst was removed by filtration
7. distillationThe filtrate was subjected to fractional distillation