Journal
TETRAHEDRON LETTERS
Volume 54, Issue 51, Pages 7029-7030Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.10.066
Keywords
7-Hydroxycarvone; alpha-Pinene; Photooxygenation; Ring-opening reaction
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan
- Grants-in-Aid for Scientific Research [25750388] Funding Source: KAKEN
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A three-step synthesis of (R)-7-hydroxycarvone (1), which is anticipated to be a valuable building block for the versatile preparation of natural products, is described. Optimization of the reaction conditions for photooxygenation and migration of (S)-alpha-pinene 2, tetrapropylammonium perruthenate (TPAP) oxidation of the generated alcohol, and a subsequent ring-opening reaction in the presence of Cu(OTt)(2) led to the synthesis of 1 with good reproducibility. The desired product 1 was thus obtained in 46% yield over three steps. (C) 2013 Elsevier Ltd. All rights reserved.
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