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Nuclear substituted salicylic acid and salt thereof and production of same salt

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专利汇可以提供Nuclear substituted salicylic acid and salt thereof and production of same salt专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:A nuclear substituted salicylic acid expressed by formula I (R
1 and R
2 are 1-10C alkyl; R
3 and R
4 are H or 1-4C alkyl) and salts thereof.
EXAMPLE: 3-(α,α-Dimethylbenzyl)-6-methylsalicylic acid.
USE: Useful as a germicide, stabilizer for high polymers or developer for recording materials, excellent in solubility in organic solvents or high polymer compounds, capable of forming completely transparent compositions when transparency is required therefor and especially exhibiting stability to heat and light.
PREPARATION: Sodium or potassium salt of a nuclear substituted phenol expressed by formula II is reacted with gaseous carbon dioxide in an organic solvent at 120-200°C to afford the compound expressed by formula I. Furthermore, the compound expressed by formula II is synthesized by reacting a compound expressed by formula III with a compound expressed by formula IV (R
5 and R
6 are H or 1-9C alkyl).
COPYRIGHT: (C)1990,JPO&Japio,下面是Nuclear substituted salicylic acid and salt thereof and production of same salt专利的具体信息内容。

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