54208-05-8Relevant articles and documents
γ-METHYL-γ,δ-EPOXY-α,β-UNSATURATED ALDEHYDE COMPOUND AND FLAVOR COMPOSITION CONTAINING THAT COMPOUND
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Paragraph 0025-0028, (2021/05/21)
PROBLEM TO BE SOLVED: To provide a new compound useful as a flavor ingredient or the like, and a flavor composition containing the compound. SOLUTION: The invention provides: a γ-methyl-γ,δ-epoxy-α,β-unsaturated aldehyde compound represented by the general formula (1) in the figure useful as a flavor ingredient and the like; and a flavor composition containing the compound. (In the formula, the solid line, the double line, H, C, O, R1 and R2 are as defined in the specification.) SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
A convergent total synthesis of (-)-mucocin: An acetogenin from Annonaceae
Hoppen, Sabine,Baeurle, Stefan,Koert, Ulrich
, p. 2382 - 2396 (2007/10/03)
A total synthesis of the Annonaceous acetogenin mucocin has been accomplished. The synthesis follows a convergent strategy, wherein at a very late stage the left part of the molecule is connected with the right part. The key reaction is the stereocontrolled addition of an organomagnesium compound 2 to the aldehyde 3. The THP ring of mucocin is build by a 6-endo epoxide cyclization of an epoxyacetonide precursor (16 → 17). The new modular synthetic approach developed herein should be useful for the synthesis of other related natural products as well as pharmacologically interesting analogues.