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    • 8. 发明授权
    • Magnesium chloride or phosphonium halide derivatives of
3,7,11-trimethyl-dodeca-2,6(10)-diene(triene)-1-ol
    • 3,7,11-三甲基 - 十二烷-2,6(10) - 二烯(三烯)-1-醇的氯化镁或卤化鏻衍生物
    • US4595783A
    • 1986-06-17
    • US646271
    • 1984-08-31
    • Friedrich VogelJoachim PaustAxel Nuerrenbach
    • Friedrich VogelJoachim PaustAxel Nuerrenbach
    • C07C17/16C07D311/72C07F3/02C07F9/143C07F9/54
    • C07F9/5428C07C17/16C07D311/72C07F3/02C07F9/143
    • The invention relates to intermediate compounds having the general formula I ##STR1## in which R.sup.1 is H, an alkyl, arylalkyl or an aliphatic acyl radical, preferably a benzyl or acetyl group and wherein X and Y together span an additional bond between the X and Y carrying C atoms (Ia) or in which Y is OH and X is H (Ib) and in which the dotted line can represent an additional bond particularly[2R,1'Z,3'E,7'E]-6-benzyloxy-2,5,7,8-tetramethyl-2-(4',8',12'-trimethyl-trideca-1',3',7'-trien-1'-yl)chroman and6-benzyloxy-2,5,7,8-tetramethyl-2-(1'-hydroxy-4',8',12'-trimethyl-trideca-3',7'-diene-1'-yl)chroman, as well as compounds and methods of preparing compounds having the general formula II ##STR2## in which Z is one of the groups ##STR3## wherein R.sup.2 is an alkyl group with 1 to 4 carbon atoms preferably CH.sub.3 or C.sub.2 H.sub.5particularly (3,7,11-trimethyl-trideca-2,6,10-trien-1-yl)triphenylphosphonium chloride and (3,7,11-trimethyl-trideca-2,6,10-trien-1-yl) phosphoric acid dimethylester as well as methods for the preparation of (2R,4'RS,8'Rs)-.alpha.-tocopherol and (all-rac)-.alpha.-tocopherol via the new intermediate product.
    • 本发明涉及具有通式I(I)的中间体化合物,其中R 1为H,烷基,芳烷基或脂族酰基,优选苄基或乙酰基,并且其中X和Y一起跨越 X和Y携带C原子(Ia)或其中Y是OH,X是H(Ib),其中虚线可以代表额外的键,特别是[2R,1'Z,3'E,7'E] -6-苄氧基-2,5,7,8-四甲基-2-(4',8',12'-三甲基十三碳烯-1',3',7'-三烯-1'-基)苯并二氢吡喃酮和 6-苄氧基-2,5,7,8-四甲基-2-(1'-羟基-4',8',12'-三甲基 - 三环-10a-3',7'-二烯-1'-基)苯并二氢吡喃 ,以及制备具有通式II(II)的化合物的化合物和方法,其中Z是组ClMg之一; BrMg; (IIa)(IIc)(IIc)其中R2是具有1至4个碳原子的烷基,优选为CH3或C2H5(3,7,11-三甲基 - 十三烷-2,6,10-三烯 (3,7,11-三甲基 - 十三碳-2,6,10-三烯-1-基)磷酸二甲酯以及制备(2R,4'RS,8 'Rs) - α-生育酚和(全消旋) - α-生育酚通过新的中间产物。