Method for preparing quaternary ammonium salt containing adamantine alkyl
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- IDEMITSU KOSAN CO LTD
- Publication Date
- 2011-01-05
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to the preparation method of the quaternary ammonium salt with adamantyl group, more specifically, relates to the method for preparing the quaternary ammonium salt with adamantyl group with high yield and high purity. Background technique
[0002] Adamantane has a structure of four cyclohexane rings condensed into a cage shape. It is a stable compound with high symmetry. Its derivatives show specific functions. Therefore, it is known that it is a raw material for pharmaceuticals and high-functional industrial materials. useful.
[0003] For example, adamantane derivatives have been tried to be used in optical disk substrates, optical fibers, lenses, etc. due to their optical properties, heat resistance, etc. (see, for example, Patent Documents 1 and 2).
[0004] In addition, adamantyl esters have been attempted to be used as resin raw materials for photoresists by utilizing their acid sensitivity, dry etching resistance, ...