• cyclic
  • More specifically it relates to diol terminated poly(ester-amide)s of triglycolic acid that are optionally further reacted with glycolide, lactide, trimethylene carbonate, epsilon-caprolactone, or p-dioxanone, or mixtures of said cyclic monomers to produce the corresponding block copolymers. (google.com)
  • The cyclic oligomers form when the nitrogen of the amide forms a sigma bond to a lithium while the nitrogen lone pair binds to another metal centre. (wikipedia.org)
  • Glutathione
  • Glutathione amide reductase (EC 1.8.1.16, GAR) is an enzyme with systematic name glutathione amide:NAD+ oxidoreductase. (wikipedia.org)
  • This enzyme catalyses the following chemical reaction 2 glutathione amide + NAD+ ⇌ {\displaystyle \rightleftharpoons } glutathione amide disulfide + NADH + H+ Glutathione amide reductase is a dimeric flavoprotein (FAD). (wikipedia.org)
  • Characterization of glutathione amide reductase from Chromatium gracile. (wikipedia.org)
  • Glutathione amide-dependent peroxidase (EC 1.11.1.17) is an enzyme with systematic name glutathione amide:hydrogen-peroxide oxidoreductase. (wikipedia.org)
  • This enzyme catalyses the following chemical reaction 2 glutathione amide + H2O2 ⇌ {\displaystyle \rightleftharpoons } glutathione amide disulfide + 2 H2O This enzyme from the proteobacterium Marichromatium gracile is a chimeric protein. (wikipedia.org)
  • complexes
  • Transition metal amides are intermediates in the base-induced substitution of transition metal ammine complexes. (wikipedia.org)
  • MXx + x Li(hmds) → M(hmds)x + x LiX (X = Cl, Br, I and sometimes F) Metal bis(trimethylsilyl)amide complexes are lipophilic due to the ligand and hence are soluble in a range of nonpolar organic solvents, this often makes them more reactive than the corresponding metal halides, which can be difficult to solubilise. (wikipedia.org)
  • esters
  • Borane-tetrahydrofuran complex or borane-methyl sulfide complex is used to generate triacyloxyboranes, which can be effectively reacted with various nucleophiles (alkylamines, arylamines, hydrazides, alcohols, phenols) at reflux in toluene to provide the corresponding amides and esters in excellent yield. (organic-chemistry.org)
  • On the other hand, amides are much stronger bases than carboxylic acids, esters, aldehydes, and ketones (their conjugate acids' pKas are between −6 and −10). (wikipedia.org)
  • The solubilities of amides and esters are roughly comparable. (wikipedia.org)
  • ligands
  • Amide ligands have two electron pairs available for bonding. (wikipedia.org)
  • In these two examples, the dimethylamido ligands are both bridging and terminal: Tris(dimethylamino)aluminium dimer Tris(dimethylamino)gallium dimer In practice, bulky amide ligands have a lesser tendency to bridge. (wikipedia.org)
  • Amide ligands may participate in metal-ligand π-bonding giving a complex with the metal center being co-planar with the nitrogen and substituents. (wikipedia.org)
  • poly
  • A certain class of poly(ester-amide) polymers are disclosed which are particularly suitable as hot melt adhesive compositions particularly advantageous for bonding plastics, such as polyester or polycarbonate polymers. (google.com.au)
  • The particular class of poly(ester-amides) are those which include a polymeric fat. (google.com.au)
  • The particular class of poly(ester-amides) are those which include a polymeric fat acid, and more specifically a dimeric fat acid component, in which the ester segments will contribute from about 20, preferably 35 to about 60 weight percent of the poly(ester-amide) and the amide segment contributing the remainder. (google.com.au)
  • This invention relates to a certain class of poly(ester-amide) polymers which are particularly suitable as hot melt adhesive compositions particularly advantageous for bonding plastics, such as polyester or polycarbonate polymers. (google.com.au)
  • Poly(ester-amide) adhesive compositions have been known for some time in the art, including the use as hot melt adhesives for various substrates such as metals, wood and plastics. (google.com.au)
  • Included in this background of poly(ester-amide) compositions are U.S. Pats. (google.com.au)
  • No. 3,650,999, related to poly(ester-amide) compositions, is generally useful as adhesives to a variety of substrates such as steel, aluminum, wood and plastic substrates. (google.com.au)
  • By the proper selection of reactants and using special polymerization techniques, a block copolymer poly(ester-amide) composition was prepared having certain advantages in high temperature properties over earlier adhesive compositions. (google.com.au)
  • Provided herein is a copolymer that includes a soft block (A) that contains poly(ester amide) (PEA) and a hard block (B). The copolymer can be any of AB, ABA or BAB type block copolymers. (google.com.au)
  • 2. An absorbable stent formed of a material comprising a copolymer, wherein the copolymer comprises a poly(ester amide) block and a tyrosine di-peptide block. (google.com.au)
  • This invention generally relates to poly(ester amide) block copolymers useful for forming a bioabsorbable device such as a stent or for coating an implantable device such as a drug-delivery stent. (google.com.au)
  • More specifically it relates to diol terminated poly(ester-amide)s of triglycolic acid that are optionally further reacted. (google.com)
  • secondary
  • Tris(pentafluorophenyl)boron B(C 6 F 5 ) 3 is an effective catalyst for the reduction of tertiary and N -phenyl secondary amides in the presence of a silane. (organic-chemistry.org)
  • A chemoselective activation of a secondary amide with triflic anhydride in the presence of 2-fluoropyridine enables a mild reduction using triethylsilane, a cheap and rather inert reagent. (organic-chemistry.org)
  • In primary and secondary amides, the presence of N-H dipoles allows amides to function as H-bond donors as well. (wikipedia.org)
  • reaction
  • Various amides can be reduced in near quantitative yield, with minimal purification, at low temperatures, and with short reaction times. (organic-chemistry.org)
  • Reducing agents able to affect this reaction include metal hydrides such as lithium aluminium hydride, or lithium borohydride in mixed solvents of tetrahydrofuran and methanol, N,N-disubstituted amides can be reduced to aldehydes by using an excess of the amide:[citation needed] R(CO)NRR' + LiAlH4 → RCHO + HNRR' With further reduction the alcohol is obtained. (wikipedia.org)
  • The von Braun amide degradation is the chemical reaction of a monosubstituted amide with phosphorus pentachloride or thionyl chloride to give a nitrile and an organohalide. (wikipedia.org)
  • reduction
  • The improved methods for the reduction of nitriles 1 and amides 2 with complex metal hydrides have been so far reported. (erowid.org)
  • hydrogen
  • They consist of 9-atom or 11-atom rings formed by two CO...HN hydrogen bonds between a side chain amide group and the main chain atoms of a short polypeptide. (wikipedia.org)
  • Thus
  • Thus, the amide formed from dimethylamine and acetic acid is N,N-dimethylacetamide (CH3CONMe2, where Me = CH3). (wikipedia.org)
  • enzyme
  • L-proline amide hydrolase (EC 3.5.1.101, S-stereoselective piperazine-2-tert-butylcarboxamide hydrolase, LaaA, L-amino acid amidase) is an enzyme with systematic name (S)-piperidine-2-carboxamide amidohydrolase. (wikipedia.org)