This document is part of Volume 17 'Static Dielectric Constants of Pure Liquids and Binary Liquid Mixtures (Supplement to IV/6)' of Landolt-Brnstein Group IV 'Physical Chemistry'. Chemical substances in this chapter: Element System: C-H Hill Formula: C 6 H 6 Molecular Weight: 78.11 CAS re...
The electrophylic COOH group is regarded as responsible for the deviations. The spectra are highly specific and make possible a ready characterization of any acid. This should prove useful in any analytical work involving these acids, particularly the higher members....
Synthesis of P-6 by Polyaddition of TM-BEOBP with TMA Yield ¼ 79%. Mn ¼ 6900, Mw=Mn ¼ 2:14. Unit ratios of a:b:c = 1:0.42:1.03. The content of COOH group was 4.16%. IR (film): 3430 ( OH), 1731 ( C=O, ester), 1474 ( C=C, aromatic), 1238 ( C– ...
Inclusion of the benzene group in the ligand permitted use of a simple spectrophotometric method for the measurement of equilibrium concentrations. It was shown that equilibrium could be attained rapidly, in under 2 days, if the detergent was initially mixed with the protein and allowed to d...
Benzoic acid is scaly or needle shaped, with the smell of benzene or formaldehyde, flammable. The relative density is 1.2659. The melting point is 122.4ºC, the boiling point is 249ºC, and the refractive index is 1.504. Vapors are volatile. Flash point (close cup) 121-123ºC. Sli...
can also be F, Cl or Br, with the proviso that Q and R1 must not simultaneously be radicals selected from the group consisting of F, Cl, Br, CF3 and -OH, where, in compounds in which all radicals A1 are selected from the group consisting of 1,4-phenylene which is unsubstituted or...
What is the major product in the Friedle-Craft Alkylation reaction using 1,4-dimethoxybenzene and 3-methyl-2-butanol, also included in the reaction are H_2SO_4 and CH_3COOH. What is the mechanism behind this reaction? What is the structure and IUPAC...
The Bräse group also performed the reaction at room temperature within 5d, using 1,4-dioxane as a solvent. This combination had given the best results in the case of hydratropaldehyde with 87% conversion and 67% ee. In this case, an increased yield of 72% was observed, but the ...
group or 5 to 7 membered heterocyclic group, wherein R is C1-C6alkyl, X is F or Cl, R′ and R″ are independently H or C1-C6alkyl;Y is:an unsaturated heterocyclic group having 1-3 N atoms, Optionally substituted with one or more substituents selected from —R, —OR, —COOH, —...
one or more COOH groups, for example, as alkali metal salts, preferably sodium or potassium salts, or as alkaline earth metal salts, e.g., calcium or magnesium salts, or as ammonium salts, e.g., as salts with ammonia or organic amines or amino acids, can be used. Compounds of formula...