Acetic Anhydride → Acetic acid 7-(tert-butyl-dimethyl-silanyloxy)-hept-2-ynyl ester
Reaction equation
[C:1]([Si:5]([CH3:16])([CH3:15])[O:6][CH2:7][CH2:8][CH2:9][CH2:10][C:11]#[C:12][CH2:13][OH:14])([CH3:4])([CH3:3])[CH3:2].[C:17](OC(=O)C)(=[O:19])[CH3:18]>N1C=CC=CC=1>[C:1]([Si:5]([CH3:16])([CH3:15])[O:6][CH2:7][CH2:8][CH2:9][CH2:10][C:11]#[C:12][CH2:13][O:14][C:17](=[O:19])[CH3:18])([CH3:4])([CH3:3])[CH3:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 7-(tert-Butyl-dimethyl-silanyloxy)-hept-2-yn-1-ol 27 (4.507 g, 21 mmol) in pyridine (20 mL) was treated with acetic anhydride (3.0 mL, 31.8 mmol). After 18 h, the solvent was evaporated and the residue co-evaporated with toluene. The residue was used directly in the next step.