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A Novel Production of γ-Butyrolactone Catalyzed by Cationic Hydridoruthenium Complexes
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- HARA Yoshinori
- Yokohama Research Center, Mitsubishi Chemical Corporation
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- MIYAZAWA Chihiro
- Corporate Planning Department, Mitsubishi Chemical Corporation
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- TAKAHASHI Kazunari
- Development and Engineering Research Center, Mizushima Plant, Mitsubishi Chemical Corporation
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- WADA Keisuke
- Yokohama Research Center, Mitsubishi Chemical Corporation
Bibliographic Information
- Other Title
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- カチオン性ヒドリドルテニウム錯体触媒を用いたγ-ブチロラクトンの新規製造法
- カチオンセイ ヒドリドルテニウム サクタイ ショクバイ オ モチイタ ガンマーブチロラクトン ノ シンキ セイゾウホウ
- A Novel Production of .GAMMA.-Butyrolactone Catalyzed by Cationic Hydridoruthenium Complexes.
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Description
γ-Butyrolactone (GBL) is produced by a two-stage hydrogenation of maleic anhydride (MAH) in the liquid phase: a hydrogenation of MAH to succinic anhydride (SAH) in the first stage and a hydrogenation of SAH to GBL in the second stage.<BR>A novel ruthenium catalyst system consisting of Ru salts, trialkylphosphine and p-toluenesulfonic acid was found very effective for the hydrogenation of SAH affording GBL in selectivities above 96%. Acid promoters like p-toluenesulfonic acid induce structual change in the ruthenium complexes, leading to the cationic complexes, which show higher catalytic activity and selectivity than the neutral complexes.<BR>A process to maximize the performance and stability of the catalyst to produce GBL was developed. Novel features of this process are the external preparation of the Ru complexes, the reaction protocol which combines over-flow reaction with stripping for the constant removal of H2O, and the catalyst recovery system by the extraction.
Journal
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- NIPPON KAGAKU KAISHI
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NIPPON KAGAKU KAISHI 1999 (9), 567-576, 1999-09-10
The Chemical Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679367404544
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- NII Article ID
- 10004689339
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- NII Book ID
- AN00186595
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- ISSN
- 21850925
- 03694577
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- NDL BIB ID
- 4850490
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed