期刊
ORGANIC LETTERS
卷 11, 期 8, 页码 1849-1851出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol900360h
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资金
- Robert A. Welch Foundation
- NSF [CHE-0749016]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0749016] Funding Source: National Science Foundation
Phosphine-catalyzed [3 + 2] cycloaddition of ethyl-2,3-butadienoate with enone (S)-3b occurs with high levels of regio- and stereocontrol to deliver the cis-fused cyclopenta[c]pyran 4 characteristic of the iridoid family of natural products. Cycloadduct 4 was converted to the iridoid glycoside (+)-geniposide in 10 steps.
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