Photocycloaddition of Benzaldehyde to Furan
نویسندگان
چکیده
منابع مشابه
The arene–alkene photocycloaddition
In the presence of an alkene, three different modes of photocycloaddition with benzene derivatives can occur; the [2 + 2] or ortho, the [3 + 2] or meta, and the [4 + 2] or para photocycloaddition. This short review aims to demonstrate the synthetic power of these photocycloadditions.
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The title compound, C(8)H(9)N(3)S, contains two mol-ecules in the asymmetric unit. One mol-ecule is close to being planar (r.m.s. deviation from the mean plane = 0.06 Å for the non-H atoms), while the other exhibits a dihedral angle of 21.7 (1)° between the benzene ring and the mean plane of the thio-semicarbazone unit. Inter-molecular N-H⋯S hydrogen bonds link the mol-ecules into layers parall...
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Dienophilic ethylenes yield solely ortho photocycloadducts with benzene whereas alkenes and enol ethers give products arising from both ortho and meta cycloaddition. The relative efficiencies of the twoprocesses are largely predictable and this combined with reasonable chemical and quantum yields make these photoreactions realistic synthetic procedures towards bicyclo[4.2.Oloctane and tricyclo[...
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In the crystal of the title compound, C(8)H(8)O(3)S, the mol-ecules are linked into a three-dimensional array by inter-molecular C-H⋯O hydrogen bonds.
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1985
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.105.1_19