Synthesis of 5, 6-Methylenedioxybenzo [b] furan
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چکیده
منابع مشابه
Synthesis of 5-acetoxymethyl- and 5-hydroxymethyl-2-vinyl-furan.
5-Acetoxymethyl- and 5-hydroxymethyl-2-vinylfuran were synthesized by two routes. The first route starts from 2-methylfuran and the second from furfuryl acetate. The latter route, involving successive Vilsmeier-Haack and Wittig reactions, is suitable for producing 5-acetoxymethyl-2-vinylfuran and 5-hydroxymethyl-2 vinylfuran in 68% and 60%yields, respectively.
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In the title compound, C(17)H(15)N(5)O(3)S, the plane of the triazolo-thia-diazole system forms dihedral angles of 15.68 and 4.46° with the planes of the pyridine and furan rings, respectively. In the mol-ecule, there is an intra-molecular C-H⋯N inter-action. The crystal structure also contains other inter-molecular inter-actions, such as C-H⋯O hydrogen bonds, π-π stacking (centroid-centroid di...
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In the title compound, C(15)H(11)BrO(3), the dihedral angle between the naphtho-furan ring system (r.m.s. deviation = 0.022 Å) and the side chain is 4.50 (2)°. In the crystal, short Br⋯Br [3.4435 (7) Å] contacts propagating along [010] in a zigzag manner and weak π-π inter-actions [shortest centroid-centroid separation = 3.573 (2) Å] directedalong [100] are observed.
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1966
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.87.10_1096