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This document discusses a method for synthesizing donor-acceptor cyclobutanes through intramolecular [2 + 2] cycloaddition of aldoketenes derived from tert-butyl alkynyl ethers. The reactions yield a variety of cis-fused cyclobutanones with moderate to high diastereoselectivity and good to excellent yields, while also tolerating free hydroxyl groups in starting materials. The study highlights the efficiency and versatility of this synthetic approach in organic chemistry.

Author

wweichen708

Language

EN