tert-Butanol → HCID 15219058, compound

Reaction equation

[CH:1]1([Si:6](OCC)([O:10][CH2:11][CH3:12])[O:7][CH2:8][CH3:9])[CH2:5][CH2:4][CH2:3][CH2:2]1.[C:16]([OH:20])([CH3:19])([CH3:18])[CH3:17].[O-]CC.[Na+].C[Si](C)(C)Cl>>[C:16]([O:20][Si:6]([CH:1]1[CH2:2][CH2:3][CH2:4][CH2:5]1)([O:10][CH2:11][CH3:12])[O:7][CH2:8][CH3:9])([CH3:19])([CH3:18])[CH3:17]

Participants

Reactant 4

HCID 6386tert-Butanol

HCID 6397Chlorotrimethylsilane

HCID 2723922Sodium ethoxide

HCID 16217491Cyclopentyltriethoxysilane

Product 1

HCID 15219058HCID 15219058, compoundYield 64.2%

Procedure

In a 500 ml three-neck flask provided with a magnetic stirrer and a reflux condenser were charged 29.3 g (0.129 mole) of cyclopentyl triethoxysilane, 165.9 g (2.24 mole) of tert-butyl alcohol and 2.06 g (30.3 m mole) of sodium ethoxide, which were then reacted with each other in an oil bath of 85° C. for 24 hours under stirring. Then, trimethylchlorosilane was added to neutralize the alkali. Then, 21.6 g (0.0828 mole) of tert-butoxy cyclopentyl diethoxysilane were obtained by vacuum distillation. Its structure was confirmed as in Example 1. The yield was 64%.