Propion amide

There are two different oligomer series present in all spectra. The oligomer series can be identified by calculating the masses of the end groups and assigning them to specific chemical structures (Pasch and Schrepp, 2003 Weidner et al., 2004). In the present example, the two species are the propionic amide-acid (R-am-ac) and the propionic amide-propionic amide polyamides (R-am-am-R). The use of MALDI-TOF MS as a structure-sensitive detector allows the resolution to be indirectly enhanced since several species coelute, as shown in Fig. 17.21. The polarity of the... 

Ethyl-5-oxo-4,5-dihydro-tetrazol-1 -yl)-ethyl]-4-methoxymethyl-piperidin-4-yl -A/-phenyl-propion-amide,C2iH32N603l Mr 416,25 hydrochloride monohydrate [70879-28-6], C21H32N6O3 HCI H20, Mr 470.99, mp 138.4-140.8 °C... 

The solubility of NdX3 catalysts is improved by the addition of electron donors (D). Catalyst activity is remarkably increased without substantial deterioration of the cis- 1,4-content. Typical donor ligands applied in NdX3 Dn/AlR3 type systems are alcohols such as EtOH [92,112,113], 2-ethylhexanol [114] or various pentanol isomers [115]. Furthermore, tetrahydrofuran (THF) [35], tributyl phosphate (TBP) [116-119], alkyl sulfoxides [116,117,120,121], propion amide [122,123], B(0-CH2-CH2-0-CH2-CH2-0H)3/B(0-CH2-CH2-0-C2H5)3 [124,125], pyridine [126] and dioxides [127,128] are applied as donors. The increase in catalyst activity by donor ligands is attributed to the improved solubility of the active species in hydrocarbon solvents [129,130]. 

Acid amides have occasionally, like formamide, been used to produce 8-substituted purines. Acetamide and 2,4,5-triamino-6-oxo-l,6-dihydropyrimidine afforded 8-methyl-guanine (60JA2633) and 8-methyl- or ethyl-xanthines resulted from acetamide or propion-amide and 4,5-diamino-2,6-dioxo-l,2,3,6-tetrahydropyrimidine (53CB333). Diamides such... 

The immobilized Evans chiral auxiliary 56 has also been employed in asymmetric a-alkylation of resin-bound propionic amide [13, 27]. Reductive cleavage afforded the a-benzylated propanol (2-methyl-3-phenylpropanol). 

Of the derivatives of ot-phenoxypropionic acid, 2-(3-chlorophenoxy)propion-amide (3-CPA, 11), described by Synerholm and Zimmermann (1947) and recommended for selective weed control in orchards should be mentioned. 

RP 2-Phenyl-carbamoyloxy-N-athyl-propion-amid BRN 2983326 Carbanilic acid, (l-ethylcarbamoyl)ethyl ester, D-(-)- Carbetamex Carbetamid Carbetamide Carbethamide Caswell No. 159B D-(-)-1-(Ethylcarbamoyl)ethyl phenylcarbamate D-(-)-N-Ethyl-2-(phenylcarbamoyloxy)propionamide D-N-Ethylacetamide... 

Vadi, M. and N. Moradi, Study of Adsorption Isotherms of Acetamide and Propion-amide on Carbon Nanotube. OrientalJ. Chem. 2011,27(4), 1491. 

Capacity measurements in formamide, A -methylformamide (NMF) and dimethylformamide (DMF) were first described in 1961. The results differed from earlier non-aqueous solution measurements insofar as capacity humps were found in formamide and NMF (Fig. 7.2.2). Humps had previously been found only in aqueous solution and had been attributed to some special property of water. The amide hump occurs on the negative side of the potential of zero charge (pzc) in contrast to the water hump which is on the positive side. Recent measure-ments in a range of A -alkyl formamides, acetamides and propion-amides show that the cathodic hump occurs generally in amides having at least one unsubstituted iV-hydrogen atom. In fully substituted solvents like dimethylformamide and dimethylacetamide (DMA) the cathodic hump is absent but a different hump occurs on the anodic side of the pzc. In the A-alkyl acetamides and A-methylpropionamide both humps appear on the same capacity curve (Fig. 7.2.3). The two humps have been tentatively attributed to solvent dipole reorientation effects but the evidence for this is inconclusive. ... 

Amides, coco, N-(3-(dimethylamino) propyl), propionates. See Cocamidopropyl dimethylamine propionate Amides, coco, 3 dodecyloxy) propyl. See Cocamidopropyl lauryl ether Amides, coco, N-(2-hydroxypropyl)-. See Cocamide MIPA... 

Compared with MCA (Section 3.4.1) 2,2,3-trichloro-AT-hydroxymethyl-propion-amide does not exhibit special activity. Because of the excellent solubility properties — soluble not only in water but in non-polar solvents, too — the active ingredient is very much appropriated as a preservative for oil based lubricoolants (Paulus etaL, 1967). 

Name 1,6-HEX A METHYLENE BIS(3-(3.5-Dr-Tert-BUTYL-4-HYDROXYPHENYL)PROPION AMIDE)... 

When the enantiomeric propionic amides 21a and ent-21a were submitted to a reaction with chiral alkyl halides, a clear reagent control was observed. This is illustrated by the alkylation with (/ )-iodide 26, also shown in Scheme 4.5. The diastereomeric products, syn-27 and anti-2S, were obtained with almost equally high diastereoselectivity with (S,S)-21aand (/ ,/ )-21a, respectively, reflecting that there is essentially no mismatched situation. This also accounts for alkylations of amides 21a and (e t)-21a with other chiral alkyl halides [15b, 16]. 

In a further application for a drug synthesis in multikilogram scale, propionic amide 40 was alkylated with benzylic bromide 41 to give the a-branched amide 42, again in very high diastereomeric ratio of 98 2. The removal of the auxiliary by acidic hydrolysis yielded without any racemization carboxylic acid 43 that served as the southern part for Merck s endothelin receptor antagonist 44, also shown in Scheme 4.8 [27]. 

The unsymmetrical acetylene (43) yields cw-(CF3)iN-CH CH-CFs with hydrogen-Raney nickel at 20 C, undergoes slow hydration in the presence of aqueous sulphuric acid and mercuric sulphate at 53 °C to give the propion-amide (CFa)jN CO-CH2 CF3, combines with methanol in the presence of sodium methoxide to yield a 96 4 mixture of (CF3)aN-C(OMe) CH CF3 and (CFj)jN CH C(OMe)-CF3, and when subjected to photochemical hydrobromination gives the 1 1 adduct (CFs)jN-CH CBr-CF3 almost quantitatively. Slow electrophilic hydrobromination of the acetylene can be achieved in the presence of aluminium bromide at 20 °C, the main product being the same as that obtained in the photochemical reaction (H trans to Br in each case) this unexpected direction of addition is suggested to result... 

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