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The synthesis of trans ‐ and cis ‐(7′ R ,11′ R )‐phylloquinone, trans ‐ and cis ‐menaquinone‐2, trans ‐ and cis ‐(7 R ,11 R )‐phytol, and related compounds is described. Natural phylloquinone, isolated from alfalfa, is shown to possess the 2′,3′ ‐ trans configuration.
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Jackman et al. (1965) studied this question.
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