Bacterial metabolism of Tyr and Phe has been associated with the formation of aromatic compounds that impart barny-utensil and floral off-flavors in cheese. In an effort to identify possible mechanisms for the origin of these compounds in Cheddar cheese, we investigated Tyr and Phe catabolism by Lactobacillus casei and Lactobacillus helveticus cheese flavor adjuncts under simulated Cheddar chee...

Following the discovery of von Mering and Minkowski (1889) that diabetes followed pancreatectomy, and the later discovery that a pancreatic hormone, insulin, would reverse all the changes characteristic of diabetes, it became natural to regard diabetes mainly as an insulin-deficiency syndrome. Certainly many cases of human diabetes are due to deficiency of insulin, as evidenced by the low blood...

In the title mol-ecule, C19H20N2O2, the imidazole ring makes dihedral angles of 57.29 (5) and 31.54 (5)° with the attached di-meth-oxy-phenyl residue and the phenyl ring, respectively. The dihedral angle between the di-meth-oxy-phenyl and phenyl rings is 61.15 (5)°. In the crystal, pairs of C-H⋯N hydrogen bonds connect the mol-ecules into inversion dimers.

A new type of dioxetane bearing a 3-(cyanomethyl)phenyl (1a), 3-(methoxycarbonylmethyl)phenyl (1b), 3-(benzoylmethyl)phenyl (1c), or 3-[cyano(methoxycarbonyl)methyl]phenyl group (1d) decomposed through an intermediary dioxetane bearing a benzylic carbanion to afford crimson to yellow light on treatment with TBAF in DMSO.

The crystal structure of the title compound, C(14)H(11)ClO(2), is similar to those of phenyl benzoate, 4-methyl-phenyl benzoate and 4-methyl-phenyl 4-methyl-benzoate. The dihedral angle between the phenyl and benzene rings is 51.86 (4)°. The mol-ecules crystallize in planes parallel to (02).

The reaction of [Ln(btfa)3(H2O)2] (btfa- = 4,4,4-trifluoro-1-phenyl-1,3-butanedionate) with additional 4,4,4-trifluoro-1-phenyl-1,3-butanedione (Hbtfa) and acridine (Acr) in ethanol allows the isolation mononuclear compounds HAcr[Nd(btfa)4]·EtOH, (1) HAcr[Ln(btfa)4], Ln Dy (2) Yb (3); HAcr+ acridinium cation. Magnetic measurements indicate that complexes 1–3 show field-induced single-ion magnet...