Synthesis of 2-Methoxycarbonyl-5-methyl-7-methoxy-8-isopropyltetrahydronaphthalen-1-one and Rearrangement of Isopropyl Group of γ-(5-Isopropyl-4-methoxy-2-methylphenyl)-butyric Acid in Polyphosphoric Acid Cyclization
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منابع مشابه
SYNTHESIS OF 8-HYDROXY-6-METHOXY- 3-UNDECYLISOCOUMARIN AND 2-HY DROXY - 4-METHOXY-6-(2-OXOTRIDECYL) BENZOIC ACID
Straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. Hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, Cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furni...
متن کامل5-Isopropyl-5-methyl-2-sulfanylideneimidazolidin-4-one
In the title compound, C7H12N2OS, the 2-sulfanylideneimidazolidin-4-one moiety is nearly planar, with a maximum deviation of 0.054 (2) Å. In the crystal, a pair of N-H⋯O hydrogen bonds and a pair of N-H⋯S hydrogen bonds each form a centrosymmetric ring with an R 2 (2)(8) graph-set motif. The enanti-omeric R and S mol-ecules are alternately linked into a tape along [1-10] via these pairs of hydr...
متن کامل2-(4-Isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)-5-methylnicotinic acid
In the title herbicideh/phytocide, known as imaza-pic, C(14)H(17)N(3)O(3), the pyridine and imidazole rings are almost coplanar [dihedral angle = 3.08 (5)°]. An intra-molecular O-H⋯N hydrogen bond occurs. In the crystal, an N-H⋯O hydrogen bond links mol-ecules into a chain parallel to [010].
متن کاملsynthesis of 8-hydroxy-6-methoxy- 3-undecylisocoumarin and 2-hy droxy - 4-methoxy-6-(2-oxotridecyl) benzoic acid
straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furnished ...
متن کامل3-(4-Fluorophenylsulfonyl)-5-isopropyl-2-methyl-1-benzofuran
In the title compound, C(18)H(17)FO(3)S, the 4-fluoro-phenyl ring makes a dihedral angle of 82.12 (4)° with the plane of the benzofuran fragment. In the crystal structure, mol-ecules are linked by weak inter-molecular C-H⋯O hydrogen bonds and C-H⋯π inter-actions.
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1969
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.42.3011