8-Methoxy-3-(4-methylbenzylidene)-6-(prop-1-enyl)chroman-4-one
نویسندگان
چکیده
منابع مشابه
8-Methoxy-3-(4-methylbenzylidene)-6-(prop-1-enyl)chroman-4-one
In the title compound, C(21)H(20)O(3), the tolyl ring makes a dihedral angle of 31.11 (6)° with the benzene ring of the chromanone unit. The pyrone ring adopts a half-chair conformation. The mol-ecular structure is stabilized by a weak intra-molecular C-H⋯O inter-action and the crystal packing is stabilized by weak inter-molecular C-H⋯O inter-actions and a C-H⋯π inter-action.
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 furni...
متن کامل8-Ethoxy-3-(4-isopropylbenzylidene)-6-methylchroman-4-one
In the title compound, C(22)H(24)O(3), the non-fused benzene ring makes a dihedral angle of 52.56 (7)° with the benzene ring of the chromanone unit. The mol-ecular structure is stabilized by a weak intra-molecular C-H⋯O inter-action and the crystal packing is stabilized by weak inter-molecular C-H⋯O inter-actions. The isopropyl group is disordered over two positions, with site occupancies of 0....
متن کامل3-Dimethylamino-1-(4-methylphenyl)prop-2-en-1-one
In the title compound, C(12)H(15)NO, the C=C and C=O functional groups and the benzene ring are involved in an extended conjugated system. The mol-ecules are essentially planar with a maximal deviation from planarity for the non-H atoms of 0.062 (2) Å.
متن کامل(E)-1-(6-Chloro-2-methyl-4-phenyl-3-quinolyl)-3-(4-ethoxyphenyl)prop-2-en-1-one
In the title compound, C(27)H(22)ClNO(2), the phenyl substituent on the quinoline ring system is almost perpendicular to it [dihedral angle = 88.2 (1)°]. The quinoline ring system and the ethoxy-phenyl ring are oriented at dihedral angles of 79.5 (1) and 17.6 (3)°, respectively, with respect to the almost planar [r.m.s. deviation= 0.037 (3) Å] -C(=O)-C=C- linkage. In the crystal, the inversion-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2007
ISSN: 1600-5368
DOI: 10.1107/s1600536807060989