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Result

Uncommon Regioselectivity in Thiacalix[4]arene Formylation

To reveal the alternative ways for upper-rim thiacalixarene derivatization, the formylation reactions (Gross and/or Duff conditions) of the corresponding tetrapropoxythiacalix[4]arene immobilized in the 1,3-alternate conformation were system...

CC - Organická chemie

  • 2009
  • Jx
Result

Uncommon Regioselectivity in the Thiacalix[4]arene Series: Gross Formylation of the Cone Conformer

Thiacalix[4]arene immobilized in the cone conformation undergoes a direct Gross formylation reaction (Cl2CH-O-CH3/SnCl4/CH2Cl2) to give the upper-rim formylated thiacalixarene. Albeit using excess of the formylation agent a...

CC - Organická chemie

  • 2010
  • Jx
Result

The influence of O-formylation on the scale of starch macromolecules association in DMSO and water

The possible effect of O-formylation on starch association in solutions has been investigated by means of several complementary techniques. By combination of optical polarimetry, 1H NMR spectroscopy and AFM it was shown that associated struc...

CD - Makromolekulární chemie

  • 2007
  • Jx
Result

Dissolving Peptides in 0.1% Formic Acid Brings Risk of Artificial Formylation

The ability of concentrated formic acid to formylate reactive amino acid residues is known from previous reports. In contrast, solvents containing a low applications. The primary objective of this study was to explain the excessive formy...

Pharmacology and pharmacy

  • 2020
  • Jimp
  • Link
Result

Unusual Intramolecular Bridging Reaction in Thiacalix[4]arene Series

Thiacalix[4]arene immobilized in the cone conformation undergoes a direct formylation reaction giving unusual products in high yields. The Duff reaction (urotropine/TFA) leads to unprecedented intra-molecularly bridged compounds possessing t...

CC - Organická chemie

  • 2009
  • Jx
Result

Hydrazine derivatives in the mushroom Gyromitra Neuwirthii

In the dried mushrooms were detected derivatives of the gyromitrine. The main was N-methyl-N-formyl hydrazone of hexanal. The derivatives of two izomers of pentanal, heptanal, octanal, nonanal, decanal were also found. Tentative was identifi...

GM - Potravinářství

  • 2005
  • O
Result

Analysis of N1-acetyl-N2-formyl-5-methoxykynuramine/N1-acetyl-5-methoxy-kynuramine formation from melatonin in mice

The N1-acetyl-N2-formyl-5-methoxykynuramine (AFMK) a N1-acetyl-5-methoxy-kynuramine (AMK) pathways of melatonin metabolism were investigated both in mice and humans. Metabolomic analysis did identify novel metabolites of AMK, i.e. hydroxy-AM...

FR - Farmakologie a lékárnická chemie

  • 2010
  • Jx
Result

Interpretation of electrospray and atmospheric pressure chemical ionization mass spectra of 10-tetrahydropteroic acid and 5-formyl-5,6,7,8-tetrahydropteroic acid

Interpretation of electrospray and atmospheric pressure chemical ionization mass spectra of 10-tetrahydropteroic acid and 5-formyl-5,6,7,8-tetrahydropteroic acid......

CB - Analytická chemie, separace

  • 1999
  • Jx
Result

Role of formyl peptide receptor2 in schwannoma cell response during acute inflammation

ROLE OF FORMYL PEPTIDE RECEPTOR-2 IN SCHWANNOMA CELL RESPONSE DURING ACUTE formyl peptides that are normally hidden in cells but can be released into the circulation upon pathological injury. The mitochondrial formyl peptid...

Neurosciences (including psychophysiology)

  • 2017
  • O
  • Link
Result

Recent advances in N-formylation of amines and nitroarenes using efficient (nano)catalysts in eco-friendly media

N-Formylation of amines or nitroarenes using catalysts is a prominent, chemoselective and efficient reaction for the fabrication of formyl amides. Formamides in organic transformations. Formylation reactions catalyzed by un...

Physical chemistry

  • 2019
  • Jimp
  • Link
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