The combination of Bu4NF–BF3·OEt2 deprotects selectively the enol ether protecting group of γ-alkoxy- and benzyloxy-allytributylstannanes, without destannylating the tributylstannyl group, affording the corresponding γ-tributylstannyl aldehyde in high yield.
V. Gevorgyan and Y. Yamamoto, J. Chem. Soc., Chem. Commun., 1994, 59 DOI: 10.1039/C39940000059
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