Claims
- 1. A method of manufacturing a bisphenol derivative of the following formula ##STR11## where R is a lower alkyl group, tetrahydropyranyl, methoxymethyl or trialkylsilyl group, and the benzene rings in the formula are optionally substituted by a lower alkyl group, which comprises reacting a Grignard reagent derived from the following substituted phenol ##STR12## with cyclohexane-1,2-dicarboxylic acid anhydride; where R is as defined above, and X is halogen.
- 2. A method as claimed in claim 1, wherein the reaction is carried out at temperature from -78.degree. C. to the boiling point of a solvent.
- 3. A method as claimed in claim 2, wherein the temperature is about -70.degree. C.
- 4. The method of claim 1, wherein the yield of the bisphenol derivative product is at least 54%.
- 5. The method of claim 1, wherein R is a lower alkyl group of 1-6 carbon atoms.
- 6. The method of claim 1, wherein benzene rings in the bisphenol derivative product are substituted with lower alkyl groups.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-229505 |
Aug 1993 |
JPX |
|
Parent Case Info
This is a division of the application Ser. No. 08/294,214 filed Aug. 22, 1994, pending.
Foreign Referenced Citations (1)
Number |
Date |
Country |
2-311473 |
Dec 1990 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Cotterill et al, J. Chem. Soc. (G), pp. 1758-1764, 1970. |
Greene et al., "Protective groups in Oganic Synthesis", 2nd edition, pp. 10-14, John Wiley & Sons, Inc. 1991. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
294214 |
Aug 1994 |
|