In the title compound, [Y(C(5)H(2)N(2)O(4))(C(5)H(3)N(2)O(4))(C(12)H(8)N(2))(2)]·2H(2)O, the Y(III) ion lies on a twofold rotation axis and exhibits a distorted square-anti-prismatic coordination geometry. It is chelated by two 1,10-phenanthroline ligands, a 2,4-dioxo-1,2,3,4-tetra-hydro-pyrimidine-5-carboxyl-ate mono-anion and a 4-oxido-2-oxo-1,2-dihydro-pyrimidine-5-carboxyl-ate dianion. The ...

In the title compound {systematic name: N-[(4R,5R)-3,11-dioxo-10-oxa-6-thia-2-aza-tricyclo-[6.3.0.0(2,5)]undec-1(8)-en-4-yl]-2-phenyl-acetamide}, C(16)H(14)N(2)O(4)S, the four- and five-membered rings adopt planar conformations (with r.m.s. deviations of 0.0349 and 0.0108 Å respectively) while the six-membered ring adopts a half-chair, or envelope-like, conformation with the S atom in the flap ...

We reported a new naphthalimide fluorescence probe M1[dimethyl 3, 3'-((2-((2-butyl-1, 3-dioxo-2, 3-dihydro-1H-benzo[de] isoquinolin-6-yl) amino) ethyl) azanediyl) dipropionate] with Al3+ system. Its UV-visible absorption spectrum and showed remarkable optical characteristics. The optimal experimental conditions, including reaction temperature, pH, time were investigated. This system possessed g...

The incubation of 15beta-hydroxy-3-oxo-ent-kaur-16-ene (1) with the fungus Gibberella fujikuroi afforded 11beta-hydroxy-3,15-dioxo-ent-kaurane (6), 11beta,15beta-dihydroxy-3-oxo-ent-kaur-16-ene (8), 7beta,11beta,15beta-trihydroxy-3-oxo-ent-kaur-16-ene (9), 7alpha,11beta-dihydroxy-3,15-dioxo-ent-kaurane (7), and 7alpha,11beta,15beta-trihydroxy-3-oxo-ent-kaur-16-ene (10). The incubation of 15beta...

1,3-Dibromo-5,5-dimethylhydantoin (DBH) and benzyltriphenylphosphoniumtribromide (BTPTB) were used as efficient catalysts for the promotion of the synthesis of 1,8-dioxo-octahydroxanthene derivatives (DOXOs) via a one-pot three component condensation of aldehydes and cyclic 1,3-dicarbonyl compounds in the absence of solvent.

The title compound, N′1,N′4-bis(2-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)ethylidene)succinohydrazide (1), was obtained by the reaction of formylmethylflavin and succinic acid dihydrazide. product 1 characterized 1H-NMR, 13C-NMR, HRMS UV.

An electroorganic reaction for the synthesis of 7-amino-2, 4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-pyrano[2, 3-d] pyrimidine-6-carbonitrile and ethyl-7-amino-2, 4-dioxo-5-phenyl-2,3,4,5-tetrahydro-1H-pyrano[2, 3-d] pyrimidine-6-carboxylate derivatives are described, using an electrogenerated base of the anion of malonitrile or ethylcyanoacetate. This one-pot, three-component condensation of an a...

Brewer (1958) described the isolation ofa number of fungi from slime samples taken from pulp and paper mills in Eastern Canada, one of the organisms being identified as Truncatella ramulosa (v. Beyma) Steyaert (Syn. Pestalotia ramulosa v. Beyma). In 1959, during a study of a subculture of this organism, we observed crystals in old cultures grown on malt-extract-agar. In a preliminary note Benja...