1988
DOI: 10.1002/hlca.19880710315
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A Stereoselective Synthesis of (±)‐cis‐γ‐Irone

Abstract: (±)‐cis‐γ‐Irone(1), a main constitutent of natural iris oil, has been stereoselectively synthesized from methyl (2E)‐3 ‐[(2,2,4‐trimethyl‐3‐cyclohexen‐1‐yl)methoxy]‐2‐propenoate (3) (6 steps, overall yield 14%). The cis‐configuration as the exocyclic position of the double bond of 1 were secured by the thermal ene reaction of the β‐(alkenyloxy)acrylate 3 yielding the 3‐oxabicyclo [3,3,1] nonane derivative 5.

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Cited by 13 publications
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“…A general synthetic route to optically active iridoid aglycones which starts with the dihydropyran (429), obtained from Dxylal, has been described in full450 and exemplified by a synthesis of (-)-specionin (430). Asymmetric syntheses of (-)-verbena101 (431) and of (-)-epiverbenalol(432) from the chiral iron carbonyl complex (433) have been as has a ri ' O+D-GlC…”
Section: Lonicera J ~P O N I C a ~~" And A Study Of The Biosynthesis ...mentioning
confidence: 99%
“…A general synthetic route to optically active iridoid aglycones which starts with the dihydropyran (429), obtained from Dxylal, has been described in full450 and exemplified by a synthesis of (-)-specionin (430). Asymmetric syntheses of (-)-verbena101 (431) and of (-)-epiverbenalol(432) from the chiral iron carbonyl complex (433) have been as has a ri ' O+D-GlC…”
Section: Lonicera J ~P O N I C a ~~" And A Study Of The Biosynthesis ...mentioning
confidence: 99%