Reversible in situ acid formation for [small beta]-pinene hydrolysis using CO2 expanded liquid and hot water
Large amounts of waste may result from the neutralization of homogeneous acid catalysts following reaction. Here we present examples of acid formation and self-neutralization, thus eliminating waste and offering advantages for product recovery. The formation of [small alpha]-terpineol () from [small...
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Published in | Green chemistry : an international journal and green chemistry resource : GC Vol. 6; no. 8; pp. 382 - 386 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
01.01.2004
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Subjects | |
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Abstract | Large amounts of waste may result from the neutralization of homogeneous acid catalysts following reaction. Here we present examples of acid formation and self-neutralization, thus eliminating waste and offering advantages for product recovery. The formation of [small alpha]-terpineol () from [small beta]-pinene () is a reaction of commercial significance that is typically run with strong acid. We demonstrate that the reaction can be performed under more environmentally benign conditions using the acid formation capabilities of two different green technologies: CO expanded liquids and reactions in hot water (200 [degree]C). This work presents an example of the application of these methods to a reaction that has commercial significance and adds to our knowledge about the benefits and effects of co-solvents. The relative rates and product distributions achieved in each system are presented and discussed. |
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AbstractList | Large amounts of waste may result from the neutralization of homogeneous acid catalysts following reaction. Here we present examples of acid formation and self-neutralization, thus eliminating waste and offering advantages for product recovery. The formation of [small alpha]-terpineol () from [small beta]-pinene () is a reaction of commercial significance that is typically run with strong acid. We demonstrate that the reaction can be performed under more environmentally benign conditions using the acid formation capabilities of two different green technologies: CO expanded liquids and reactions in hot water (200 [degree]C). This work presents an example of the application of these methods to a reaction that has commercial significance and adds to our knowledge about the benefits and effects of co-solvents. The relative rates and product distributions achieved in each system are presented and discussed. |
Author | Eckert, Charles A Nolen, Shane A Liotta, Charles L Weikel, Ross R Chamblee, Theresa S |
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Title | Reversible in situ acid formation for [small beta]-pinene hydrolysis using CO2 expanded liquid and hot water |
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