Complete assignment of the 13C NMR spectra of 4,4‐dimethylanthracene‐1,9,10(4H)‐trione and the regioisomeric monomethyl derivatives The 1H and 13C NMR spectra of a set of structurally related tricyclic quinones consisting of 4,4-dimethylanthracene-1,9,10(4 H )-trione (1), 4,4,6,7...
a• Must have a good understanding of techniques and processes relating to the section’s organizational structure and the practices and procedures of most of the maintenance operation. Must be knowledgeable about building codes, safety codes, and local municipality practices and knowledgeable in all...
Buy Now for $19.90 Payments are secure & encryptedAbstractHuman microsomal epoxide hydrolase (mEH) is a xenobiotic-metabolizing enzyme that detoxifies reactive epoxides to more water soluble dihydrodiol compounds. We have isolated and sequenced clones that encode the entire human mEH gene (EPHX1)...
anthraceneconformational changesmolecular structurenuclear magnetic resonancecarbon 13chemical shiftcoupling constantsexperimental datamolecular modelsThe conformational analyses of 9, 10-dihydroanthracene and several of its methylated and ethylated derivatives are studied by empirical force field calculations (MM2 ...
Normal-mode calculations are presented for the lowest singlet excited states S 1 of benzene, naphthalene and anthracene. Optimized geometries and Cartesia... GS Jas,K Kuczera - 《Chemical Physics》 被引量: 118发表: 1997年 The molecular structure of formyl fluoride in the gas-phase as determined...
Brillouin-scattering experiments performed at room temperature indicate unambiguous relations between the crystalline structure and the optical and elastic... C Ecolivet,A Mierzejewski - 《Physical Review B Condensed Matter》 被引量: 2发表: 1990年 Resonant Raman scattering of anthracene-based carbons in...
(5) and 8-acetyloxymethyl-4,4,5-trimethylanthracene-1,9,10(4 H )-trione (6) were synthesized and their regiochemistry was assigned on the basis of the unambiguous structure elucidation of 9,10-dihydroxy-5-acetyloxymethyl-4,4,8-trimethyl-5,8-dihydroanthracen-1(4 H )-one (2), ...
(5) and 8-acetyloxymethyl-4,4,5-trimethylanthracene-1,9,10(4H)-trione (6) were synthesized and their regiochemistry was assigned on the basis of the unambiguous structure elucidation of 9,10-dihydroxy-5-acetyloxymethyl-4,4,8-trimethyl-5,8-dihydroanthracen-1(4H)-one (2), the precur...
acetyloxymethyl-4, 4, 5-trimethylanthracene-1, 9, 10(4H)-trione (6) were synthesized and their regiochemistry was assigned on the basis of the unambiguous structure elucidation of 9, 10-dihydroxy-5-acetyloxymethyl-4, 4, 8-trimethyl-5, 8-dihydroanthracen-1(4H)-one (2), the precursor ...
The 1H and 13C NMR spectra of these compounds were assigned completely using two-dimensional techniques. These interpretations were used for the total assignment of the NMR spectra of the closely related 5-hydroxymethyl- and 5-formyl-4,4,8-trimethylanthracene-1,9,10(4 H )-triones (...