1 In contrast, the unconjugated, carboxylic, bile acids are easily precipitated by calcium phosphate.

2 The copious benzene rings and potential carboxylic acid groups in coal suggest that these transformations might not be too difficult.

3 The esterification mechanism of unsaturated carboxylic acid was analyzed.

4 One exception is the decarboxylation of aromatic carboxylic acids.

5 Twelve different thioxanthone carboxylic amides derivatives are prepared.

6 Carboxylic acid esters are important chemical raw materials.

7 A method of hydrogenating the nitrile containing carboxylic acid acids obtained by above hydrocyanation to produce amine containing carboxylic acids is also disclosed in this invention.

8 A oxazolidine carboxylic acid tanning agent-MOCA has been synthesized by condensing DL-threonine with formaldehyde.

9 of 2, 2 - dimethylthiazolidine 4 - carboxylic acid and its hydrochloride in microwave.

10 Stearic acid (octadecanoic acid) A saturated carboxylic acid, which is widely distributed in nature as the glyceride ester.

11 Polyethylene glycol unsaturated carboxylic esterified macromer; Polycarboxylic acid type water-reducer; Molecular designing; High performance.

12 Lactic acid: Carboxylic acid found in certain plant juices, in blood and muscle, and in soil.

13 The petroleum carboxylic acids in two distillates of North Sea crude oil were separated by the extraction with column chromatogram and anion exchange resin.

14 A solidification matrix includes a straight chain saturated carboxylic acid salt, sodium carbonate, and water.

15 The alkali-treated "cage" polyamidoxime adsorbent (BCAO) possesses the high adsorptivity for the adsorption of carboxylic acids.

16 Experiment results indicated that HZ-type solid acids were ideal catalysts for direct esterification of straight chain carboxylic acids and primary alcohols.

17 It was prepared by the reaction of 12 H - dibenzo [ d , g ] [ 1,3 ] dioxocin - 6 - carboxylic acid with acetoxime.

18 The study result indicated that the white powdered particles were mainly composed of calcium salts of long chain carboxylic acid, namely the calcium stearate.

19 They are usually prepared from equivalent amounts of glycols and dibasic carboxylic acids, which undergo condensation polymerization to produce the polyester and water.

20 The most commonly used method for the covalent binding of biomolecules onto 1-D nanostructures is through the diimide-activated amidation of carboxylic acid terminated nanostructures.

21 The alkali - treated cage adsorbent ( BCAO ) possesses the high adsorptivity for the adsorption of carboxylic acids.

22 R 2 is H , amino acid residues, alkyloxyethyl formyl, organic carboxylic acid acyl , phosphoryl, and alkyl.

23 Effects of process conditions such as content of composite carboxylic acid, initial current density and anodizing time on properties of film were studied.

24 An improved synthetic route for 4 ? ? heptoxybiphenyl 4 carboxylic acid was studied.

25 Eventually, the researchers found that two samples - segments 2 - methyl alcohol and indole ring - 6 - carboxylic acid.

26 FD is a kind of re tanning agent condensated with glyoxal, formaldehyde, carboxylic acid and urea.

27 Industrial lignosulfonate is modified to graft carboxy by the free radical copolymerization reaction to synthesize a kind of scale inhibitor-the carboxylic lignosulfonate.

28 Synthesis of acyl azide from aldehyde, or acylhydrazine, or carboxylic acid , or acyl chloride, or anhydride, or ester is introduced in this paper.

29 The yield of O-alkylation of 2,5-dimethylphenol with the monohalogen carboxylic esters is above 81%.

30 Proteolytic enzymes catalyze oligomerization of the. alpha . - hydroxy carboxylic acid and . alpha . - amino acid.

31 It showed that EAA had released the original interlayer exchangeable carbonate anions of the LDH, and reacted with LDH forming carboxylic acid metal ionic bond.

32 The effect of potassium borohydride on ester and carboxylic acid reduction was introduced.

33 Preparation methods and degradation behavior for poly ( carboxylic acid silyl ester ) s were reviewed.

34 Preferably, the carboxylic acid raw material contains glutaric acid, adipic acid, pimelic acid, suberic acid, sebacic acid and 1,9-nanomethylenedicarboxylic acid in a total amount of 5 mass% or less.

35 Carboxylic acid ester compound, liquid crystal compound, liquid crystal composition, liquid crystal element and light modulation method.

36 Among these components, 17 of which were identified as benzene carboxylic acids and phenolic acids by using GC-MS analysis and by comparing with authentic compounds.

37 A series of novel liquid crystalline aromatic carboxylic acid compounds are synthesized.

37 is a online sentence dictionary, on which you can find good sentences for a large number of words.

38 The rate constant of racemization of L-Pro increased with decreasing acidity of the carboxylic acid. However, the racemization of L-His was most rapid in acetic acid.

39 Oxalic acid: Colourless, crystalline, toxic carboxylic acid found in many plants, especially rhubarb, wood sorrel , and spinach.

40 Rotundine was used as chiral auxiliary for NMR analysis of racemic carboxylic acids and it turned out to be an effective chiral solvating agent(CSA).

41 An especially preferred metal chelating group is a carboxylic acid group.

42 Sodium ammonium triacetate(SAT)has been investigated as a non-phosphorus catalyst for esterification crosslinking of cotton with 1,2,3,4-butanetetra carboxylic acid(BTCA).

43 There are certain correlations between the properties and composition of the mixed trimethylolpropane esters of carboxylic acids.

44 A group of polyamides formed by the condensation between an amino group of one molecule and a carboxylic acid group of another.

45 Experiments showed that the photoreaction is affected by the solution pH value and by the presence of carboxylic acids and surface-active agents. The reaction mechanism was preliminarily discussed.

46 The O-alkylation of 2,5-dimethylphenol with 1,3-dihalogen- propane and some monohalogen carboxylic esters are studied.

47 The paper introduces the catalyst research advances in esterification reaction of carboxylic acid.

48 Carboxylic crosslinked polystyrene microsphere was prepared by F - C acylation reaction.

49 The mellow base and the aldehyde group were oxidized to the carboxylic acid base, and some chemical bonds are also broken.

50 It was found that the dominant oxidation products were ketone, carboxylic acid and ester.

51 The lubricity of hydrocracked diesel fuel in the presence of carboxylic acids with carbon number of 18 was investigated by using high-frequency reciprocating rig (HFRR) test.

52 The application ofp - toluene sulfonic acid as catalyst for synthesis of carboxylic ester ( ethyl butyrate ) is studied.

53 For the low unsaturated degree of rape oil, the resistance to electrolytes increased by aid of modification of polyhydric alcohol and unsat9urated carboxylic compound.

54 The carboxylic acid is conjugated with a glycine and bangs off the end of the molecule.

55 The gold - adsorbing property of the amido oximime chelate fiber of carboxylic polyvinyl alcohol is studied.

56 Due to its aromatic carboxylic acid and anhydride groups, trimellitic anhydride (TMA) is relatively reactive and has found wide application in fine chemical industry.

57 Nitryl carboxylic acid and its derivant series products are sold to Europe, America, Japan and enjoys a high reputation.

58 In this paper several extractants containing a thioether group and another group such as carboxylic acid, ester or amide were synthesized.

59 Tbe carboxylic acids (oleic acid or oleate) remain important collectors in the fluorite flotation.

60 The paper discussed main factors effecting acid conversion during carboxylic acid hydrogenation.

61 This study synthesis a metabolite of additive of Olaquindox named methyl - 3 - quinoxaline - 2 - carboxylic acid.

62 Phenyl carboxylic acid was produced by oxidation of phenyl formaldehyde using hydrogen peroxide as oxidizing agent and amine hexadecane trimethyl P-W heteropoly acid as catalyst.

63 The zwitterion terpolymers of the invention are made from the terpolymers by internal transfer of the proton of the carboxylic acid to the amino group of the acrylamide or acrylate monomer.

64 Effects of carboxylic media in the racemization of neutral amino acids catalyzed by salicylaldehyde were investigated.

65 Carboxylic acid was peroxidized in organic solvents catalyzed by lipase and glycidol was synthesized from allyl alcohol catalyzed by acid peroxide.

66 Amino acids contain both acids ( carboxylic acids ) and bases ( amino group ), so they react sith both acids and < ...

67 The invention relates to a phosphoryl carboxylic acid propofol ester derivative which has the general formula (I).

68 Effect of genera carboxylic acid on urease, ammonification, nitrification of brown soil was studied through an indoor incubated test.

69 Light ageing properties of poly(vinyl chloride)(PVC) by the carboxylic ester rare earth salt and the organotin have been compared by artificial ageing test.

70 CarboxilatedBuna is a general purpose oil resistant elastomer known as carboxylic - acrylonitrile - butadiene.

71 Aryl or heteroaryl amides of tetrahydronaphthalene, chroman, thiochroman and 1,2,3,4-tetrahydroquinoline carboxylic acids having retinoid-like biological activity.

72 Stereoselective oxidative dimerization of the enolate of carboxylic acid derivatives is summarized focusing on the stereoselectivity of the process.

73 As one of the flavoring components and the important substance to barm cell formation, carboxylic acids are helpful for enzyme action.

74 When dyeing, 3-carboxyl pyridine group disconnects froms-triazine, and the cellulosic carboxylic group reacts withs-triazine rapidly to form a covalent bond,[] thus effects the colour fixation.

75 The carboxylic acids such as acetic acid, oxalic acid, succinic acid, adipic acid and octanoic acid, which were used as catalysts for producing dichloropropanol from glycerol were studied.

76 The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene.

77 Furthermore, it appears that change in surface oxygen content is primarily through the relative quantity of surface carboxylic groups.

78 REDOX Relationships amongst Alcohols , Aldehydes and Ketones and Carboxylic acids.

79 The relationship between molecular connectivity indices and the antiinflammatory activity of a series of pyrazole carboxylic acid hydrazide analogs has been investigated.

80 The sym- biosis of indoor microorganism, kinds of mite and its harm, anti-mite agents, test method of anti-mite effects as well as the an- ti-mite effect using carboxylic ester are all introduced.

81 The characteristics of structures and composition for sorption carboxylic esters and polyoxyethylene sorbitan carboxylic esters of typical non _ ionic surfactants are indicated by NMR, MS and IR.

82 The classification of carboxylic ester hydrolytic reaction mechanism in various conditions are reviewed with 12 references.

83 The carboxylic content in oxycellulose was analyzed quantitatively by FTIR using KSCN as internal standard. Calibration curve with good linear relationship was obtained.