Intramolecular Cyclization of 3, 6-Dichloro-4-(o-nitrophenyl)pyridazine in Triethyl Phosphite
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چکیده
منابع مشابه
Diclomezine: 6-(3,5-dichloro-4-methylphenyl)pyridazin-3(2H)-one
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4-Substituted 1-bromoisoquinolin-3-amines were subjected to Suzuki coupling with o-nitrophenylboronic acid to yield 1-(2-nitrophenyl)isoquinolinamines, which participated in Cadogan cyclization with triethyl phosphite under microwave irradiation and pressure to yield fluorescent indazolo[3,2-a]isoquinolin-6-amines. The new compounds were also functionalized by transformation of the amino group.
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Liquid ammonia, trialkyl phosphites, and especially trialkylphosphines, are very powerful electron-pair donor solvents with soft bonding character. The solvent molecules act as strongly coordinating ligands towards mercury(ii), interacting strongly enough to displace halide ligands. In liquid ammonia mercury(ii) chloride solutions separate into two liquid phases; the upper contains tetraamminem...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1972
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.92.12_1557