Claims
- 1. A 3-(2-trialkylsilyloxy)ethyl-7-ethyl-1H-indole, having the following formula: ##STR9## wherein R.sup.1, R.sup.2 and R.sup.3 are the same or different, and each is an alkyl group having from 1 to 6 carbon atoms.
- 2. The 3-(2-trialkylsilyloxy)ethyl-7-ethyl-1H-indole compound according to claim 1, wherein said alkyl group is methyl, ethyl, propyl, isopropyl, butyl, iso-butyl, tert-butyl, pentyl, iso-pentyl, or hexyl.
- 3. The 3-(2-trialkylsilyloxy)ethyl-7-ethyl-1H-indole compound according to claim 2, wherein R.sup.1, R.sup.2 and R.sup.3 are the same.
- 4. The 3-(2-trialkylsilyloxy)ethyl-7-ethyl-1H-indole compound according to claim 3, wherein R.sup.1, R.sup.2 and R.sup.3 are methyl.
- 5. A method for preparing a 3-(2-trialkylsilyloxy)ethyl-7-ethyl-1H-indole of claim 1, comprising reacting 7-ethyltryptophol with a trialkylsilyl derivative having the formula II: ##STR10## wherein R is: ##STR11## and R.sup.1, R.sup.2 and R.sup.3 are as defined in claim 1, to yield said 3-(2-trialkylsilyloxy)ethyl-7-ethyl-1H-indole compound.
- 6. The method according to claim 5, wherein the reaction takes place in a non-polar solvent.
- 7. The method according to claim 6, wherein the non-polar solvent is xylene or toluene.
- 8. The method according to claim 5, wherein R.sup.1, R.sup.2 and R.sup.3 are methyl.
- 9. The method according to claim 5, wherein said trialkylsilyl derivative is hexamethyldisilazane.
Parent Case Info
This application is a division of application Ser. No. 08/453,740, filed on May 30, 1995, now U.S. Pat. No. 5,599,946.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3939178 |
Demerson et al. |
Feb 1976 |
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4585877 |
Demerson et al. |
Apr 1986 |
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Non-Patent Literature Citations (1)
Entry |
P. Ribereau-Gayon et al., "Rural Economy.--Simultaneous analysis of organic acids, polyalchohols, and sugars in wine. Applications.", C.R. Acad. Sc. Paris, t. 273, Series D-1761, 8 Nov. 1971, 2 pages (together with English translation). |
Divisions (1)
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Number |
Date |
Country |
Parent |
453740 |
May 1995 |
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