The Synthesis of 24-Norfriedel-4-en-3-one
نویسندگان
چکیده
منابع مشابه
Arabidopsis det2 is defective in the conversion of (24R)-24-methylcholest-4-En-3-one to (24R)-24-methyl-5alpha-cholestan-3-one in brassinosteroid biosynthesis.
Previously, we have shown that the Arabidopsis det2 (deetiolated2) mutant is defective in the biosynthesis of brassinosteroids (BR) and that DET2 (a steroid 5alpha-reductase) acts early in the proposed BR biosynthetic pathway. In this paper we present further biochemical characterization of det2. We have undertaken metabolic experiments with 2H-labeled substrates of intermediates involved in th...
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The C=C double bond in the title mol-ecule, C(16)H(13)NO(5)S, has an E configuration. The crystal structure is stabilized by C-H⋯O hydrogen bonds. There is also a weak C-H⋯π-ring inter-action in the structure.
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The title enamino-ketone, C(11)H(10)Br(2)FNO, has a roughly planar pentenone chain; the maximum displacement of an atom from the pentenone plane is 0.071 (4) Å. The dihedral angle between the benzene ring and the pentenone unit is 77.2 (1)°. Inter-molecular C-H⋯Br and C-H⋯O inter-actions, as well as an intra-molecular N-H⋯O inter-action, are observed. In both methyl groups, each H atom is disor...
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The title enamino-ketone, C(12)H(15)NO, is a derivative of 4-(phenyl-amino)-pent-3-en-2-one with an approximately planar pentenone backbone, the greatest displacement from the plane being 0.042 (1) Å; the asymmetry in C-C distances in the group suggests the presence of unsaturated bonds. The dihedral angle between the benzene ring and the pentenone plane is 29.90 (4)°. In the crystal, an intra-...
متن کامل(E)-4-(4-Methoxyphenyl)but-3-en-2-one
In the title compound, C(11)H(12)O(2), the dihedral angle between the benzene ring and the but-3-en-2-one group is 4.04 (5)°. The crystal packing features chains, parallel to [-101], composed of dimers connected by weak C-H⋯O inter-actions..
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1975
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.48.727