Diethyl N,N′-(p-phenylene)dioxamate

Diethyl N,N′-(p-phenylene)dioxamate

In the crystal structure, the mol-ecule of the title compound, C(14)H(16)N(2)O(6), is located on an inversion centre. The amide -NHCO- plane makes a dihedral angle of 34.08 (9)° with the benzene ring. The mol-ecules are connected via inter-molecular O-H⋯N hydrogen bonds into a two-dimensional network parallel to the bc plane. An intramolecular N-H⋯O hydrogen bond is also observed.

Diethyl 2,6-dimethyl-4-p-tolyl-1,4-dihydro­pyridine-3,5-dicarboxyl­ate

In the title compound, C(20)H(25)NO(4), the 1,4-dihydro-pyridine ring adopts a flattened-boat conformation and forms a dihedral angle of 89.77 (8)° with the benzene ring. Inter-molecular N-H⋯O hydrogen bonds result in the formation of extended chains parallel to the b axis.

THE inhibition of chymotrypsin by diethyl p-nitrophenyl phosphate.

The alkyl fluorophosphonates were first shown in 1940 (Adrian, Feldberg & Kilby, 1947) to be very powerful inhibitors of cholinesterase, and for a time they were thought to be quite specific for this enzyme. Later, other esterases, such as human milk lipase and liver esterase (Webb, 1948) and citrus acetylesterase (Jansen, Nutting & Balls, 1947) were also shown to be inhibited, although not to ...

Multi - strange baryon correlations in p + p and d + Au collisions at √ s NN = 200 GeV

Multi-strange baryon correlations with charged hadrons have been measured in the p+p and d+Au reference systems at √ s N N = 200 GeV for future comparison with correlations in Au+Au collisions. Weak correlation peaks are observed on both the same side as the high p T (p T > 2 GeV/c) Ξ (the trigger particle), and on the away side (π radians away in azimuth) in the p+p data. A quantitative analys...

Jet - Hadron Correlations in √ s NN = 200 GeV Au + Au and p + p