Volume 136, Issue 17 e202400956
Zuschrift

Total Synthesis of Principinol B

Qiang Du

Qiang Du

State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, Gansu Province, 730000 China

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Zhibo Fan

Zhibo Fan

State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, Gansu Province, 730000 China

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Prof. Dr. Ming Yang

Corresponding Author

Prof. Dr. Ming Yang

State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, Gansu Province, 730000 China

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First published: 22 February 2024

Abstract

We have accomplished the first and asymmetric total synthesis of principinol B, a grayanoid possessing an oxabicyclo[3.2.1] architecture. A functionalized 5/7/6/5 tetracyclic intermediate was assembled in a convergent manner by a diastereoselective intermolecular aldol reaction and subsequent carbonyl–olefin metathesis of two enantiomerically enriched fragments. The oxabicyclo[3.2.1] architecture containing a 6,10-ether bridge was constructed by the Williamson ether synthesis.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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