D-catechol

Camellia japonica L. Sha Cha Hua (Camelia) (flower bud) Camelliagenins, d-catechol, 1-epicatechol, leucoanthocyanin, arabinose, camellin, rhamnose, theasaponin.4950 For hemoptysis, epistaxis, gastrointestinal hemorrhage, metrorrhagia. 

Vaccinium bracteatum Thunb. V. vitis-idaea L. Wu Fan Shu (Mountain cranberry) (leaf) 6-o-acetyl-arbutin, arbutin, avicularin, 2-o-caffeoylarbutin, d-catechol, 1-epicatechol, d-gallocatechol, hyperin, hyperoside, sioquercitrin, salidroside, tannins, ursone.50 For gonorrhea. 

Figure 2. Structures of (a) coniferal alcohol (b) sinapyl alcohol, (c) P-isopropyltropolone, and (d) catechol...

Table 2 UV/vis and CD spectra in solution of various geometrical and optical isomers of chromium (III) siderophores and of model compounds rhodoturulic acid (A), men (B), coprogen (C), enterobactin (D), catechol (E), and ferrioxamine B (F). UV/vis values are for Xmax (nm) and e (M cm ) CD values are for X ax (nm) and 0 (M cm )...

In the immediate neighbourhood of the isoelectric point coacervation is brought about by phenols (phenol, the three diphenols as well as the three triphenols, d-catechol, chebulic acid, digalloyl glucose and tannin). ... 

Figure 2 Examples of molecules that have been used to produce self-assembled monolayers on various surfaces, a) Thiols have been used extensively to functionalize gold, silver, and other metals . b) Trichloro- and trialkoxy silanes are used to functionalize many oxide surfaces and are used industrially as adhesion promoters, c) Phosphates and phosphonates and d) catechols have been used to functionalize a number of transition metal oxides.

Figure 2.52. Dyes which can be bound to carbon surfaces by chemisorption via n-n interaction. Left-. Meldola s blue, right 4-[2-(2-naphthoyl)-vin)d]catechol...

Figure 19. Proposed structures of (A) native 2,3-CTD, (B) 2-chlorophenol complex, (C) 2-pentanone binding, and (D) catechol complex [130].

Fenoldopam (76) is an antihypertensive renal vasodilator apparently operating through the dopamine system. It is conceptually similar to trepipam. Fenoldopam is superior to dopamine itself because of its oral activity and selectivity for dopamine D-1 receptors (D-2 receptors are as.sociated with emesis). It is synthesized by reduction of 3,4-dimethoxyphenylacetonitrile (70) to dimethoxyphenethylamine (71). Attack of diis last on 4-methoxystyrene oxide (72) leads to the product of attack on the epoxide on the less hindered side (73). Ring closure with strong acid leads to substituted benzazepine 74. O-Dealkylation is accomplished with boron tribromide and the catechol moiety is oxidized to the ortho-quinone 75. Treatment with 9NHC1 results in conjugate (1,6) chloride addition and the formation of fenoldopam (76) [20,21]. 

A biphenyl diglycidyl ether based epoxy resin was crosslinked with aminecuring agents (d -diaminodiphenylmethane and aniline novolac) and phenolcuring agents (phenol novolac and catechol novolac), and the thermomechanical... 

In an analogous reaction the catechol titanate 2136 is converted by TMSOTf 20, via 2137, to give the bis-(trimethylsilyl)ester 2138, which eliminates HMDSO 7 to regenerate 2136 [65] (Scheme 13.18). The intermediate compound 2137 apparently serves as catalyst for the reaction of l-0-trimethylsilyl-2,3,5-tri-0-benzyl-D-arabino-furanose with O-silylated alcohols to afford mainly the l-/ -arabinofuranosides. 

The partial dechlorination of chlorinated anilines has been examined in anaerobic slurries, which has already been noted (Kuhn et al. 1990), while D. hafniense (frappieri) strain PCP-1 is able to dechlorinate a wide range of polychlorinated aromatic substrates including phenols, catechols, anilines, pentachloronitrobenzene, and pentachloropyridine (Dennie et al. 1998). Both pentachloro-aniline and 2,3,5,6-tetrachloroaniline were partially dechlorinated to dichloroanilines, although the orientation of the substituents was unresoved. The kinetics of dechlorination of pentachloroaniline have been described (Tas et al. 2006). 

Sasame, H.A. Ames, M.M. and Nelson, S.D. Cytochrome P-450 and NADPH cytochrome c reductase in rat brain Formation of catechols and reactive catechol metalbolites. Biochem Biophys Res Commun 78 919-926, 1977. 

Cavalieri, E. Chakravarti, D. Guttenplan, J. Hart, E. Ingle, J. Jankowiak, R. Muti, P Rogan, E. Russo, J. Santen, R. Sutter, T. Catechol estrogen quinones as initiators of breast and other human cancers implications for biomarkers of susceptibility and cancer prevention. Biochim. Biophys. Acta 2006, 1766, 63-78. 

Stack, D. E. Byun, J. Gross, M. L. Rogan, E. G. Cavalieri, E. L. Molecular characteristics of catechol estrogen quinones in reactions with deoxyribonucleosides. Chem. Res. Toxicol. 1996, 9, 851-859. 

Rodriguez, J. H., Wheeler, D. E., McCusker, J. K., 1998, Density Functional Studies of a Heisenberg Spin Coupled Chromium-Semiquinone Complex and its Chromium-Catechol Analog , J. Am. Chem. Soc., 120, 12051. 

Ach, acetylcholine CNS, central nervous system CD, carbidopa COMT, catechol-O-methyltransferase D1, a class of dopamine receptors which includes D, and D5 subtypes D2, a class of dopamine receptors which includes D2, D3, and D4 subtypes DA, dopamine LD, levodopa MAO, monoamine oxidase MD, maintenance dose NMDA, N-methyl-D-aspartate. 

Populus tremula I O-extracts, leaves benzoic acid, catechol inhib d. mycorrhizal fungal growth 132... 

The metabolites identified [327] for each of these pathways are collected in Table 15 and once again, it should be emphasized that only the last two, catechol/anthranilate and coumarin pathways (named c and d, in Fig. 23) yield denitrogenated products. In summary, the four metabolic pathways identified for quinoline transformation, as shown in Fig. 23, are ... 

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