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A facile method for the synthesis of fused perhydropyrano[2,3-b]pyrans promoted by Yb(OTf)₃
- Liang, Peng, Pan, Yang, Ma, Xiaofeng, Jiao, Wei, Shao, Huawu
- Chemical communications 2018 v.54 no.30 pp. 3763-3766
- aldehydes, chemical reactions, diastereoselectivity, pyrans
- A stereospecific three-component domino reaction between glycals, alkylidene malonate and aldehydes catalyzed by Yb(OTf)₃ is described. Multi-substituted cis-fused perhydropyrano[2,3-b]pyran derivatives were obtained with high diastereoselectivity.