Commercial linear alkylbenzenesulfonate (LAS) contains 20 congeners of linear alkanes (C(10) to C(13)) substituted subterminally with the 4-sulfophenyl moiety in any position from lateral to central. Parvibaculum lavamentivorans DS-1(T) degrades each of eight laterally substituted congeners [e.g., 2-(4-sulfophenyl)decane (2-C10-LAS); herein, compounds are named systematically by chain length (e...

The title compound, 2C(8)H(20)N(+)·C(2)O(4) (2-)·2H(2)O, synthesized by neutralizing H(2)C(2)O(4)·2H(2)O with (C(2)H(5))(4)NOH in a 1:2 molar ratio, is a deliquescent solid. The oxalate ion is nonplanar, with a dihedral angle between carboxyl-ate groups of 64.37 (2)°. O-H⋯O hydrogen bonds of moderate strength link the O atoms of the water mol-ecules and the oxalate ions into rings parallel to t...

In the title compound, C15H14ClNO2S2, the 2H-chromene ring system is essentially planar, with a maximum deviation of 0.0133 (10) Å. Three C atoms and their attached H atoms of the pyrrolidine ring are disordered [occupany ratio 0.874 (7):0.126 (7)] with both disorder components adopting a twisted conformation. The dihedral angle between the 2H-chromene ring system and the major occupancy compon...

The nickel(II), copper(II), and zinc(II) complexes of the proline-thiosemicarbazone hybrids 3-methyl-(S)-pyrrolidine-2-carboxylate-2-formylpyridine thiosemicarbazone (L-Pro-FTSC or (S)-H2L(1)) and 3-methyl-(R)-pyrrolidine-2-carboxylate-2-formylpyridine thiosemicarbazone (D-Pro-FTSC or (R)-H2L(1)), as well as 3-methyl-(S)-pyrrolidine-2-carboxylate-2-formylpyridine 4,4-dimethyl-thiosemicarbazone ...

Chandramouli, Visvanathan, Karin Ekberg, William C. Schumann, John Wahren, and Bernard R. Landau. Origins of the hydrogen bound to carbon 1 of glucose in fasting: significance in gluconeogenesis quantitation. Am. J. Physiol. 277 (Endocrinol. Metab. 40): E717–E723, 1999.— Healthy subjects ingested H2O. 2H enriched the hydrogen bound to carbon 1 of blood glucose 1.3 to 1.8 times more than the hyd...

The intriguing (?-hydrido)diboranes(4) with their prominent pristine representative [B2H5]? have mainly been studied theoretically. We now describe the behavior of planarized tetraaryl (?-hydrido)diborane(4) anion [1H]? in cycloaddition reactions homologous series heterocumulenes CO2, iPrNCO, and iPrNCNiPr. show that a C=O bond CO2 selectively activates B?B [1H]?, while ?-H ligand is left untou...

In this study, the authors described evaluation of microwave-assisted reaction conditions for synthesis 4,6-dihydroxyaurone derivatives, including 2’,4’,6’-trihydroxychloroacetophenone (50 W, 65°C and 30 min); 4,6-dihydroxybenzofuran-3(2H)-one 60°C 5 min), 80°C 20-40 min). The optimum procedure was applied to prepare derivatives with different substituents on benzylidene ring.

4-Benzyl-1,2,4-triazin-3,5(2H,4H)-dione (3-benzyl-6-azauracil, 2), and 2,4-dibenzyl-1,2,4-triazin-3,5(2H,4H)-dione (1,3-dibenzyl-6-azauracil, 3) were synthesized by the reaction of 1,2,4-triazin-3,5(2H,4H)-dione (6-azauracil, 1) with benzyl bromide and potassium carbonate in dry acetone via the 18-crown-6-ether catalysis. In these reaction methods, we developed more convenient and efficient met...