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Molecules, Volume 8, Issue 10

2003 October - 4 articles

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Articles (4)

  • Article
  • Open Access
4 Citations
14,048 Views
7 Pages

2-(p-Hydroxybenzyl)indoles - Side Products Formed Upon Cleavage of Indole Derivatives from Carboxylated Wang Polymer - an NMR Study

  • Felikss Mutulis,
  • Máté Erdélyi,
  • Ilze Mutule,
  • Jana Kreicberga,
  • Sviatlana Yahorava,
  • Aleh Yahorau,
  • Larisa Borisova-Jan and
  • Jarl E.S. Wikberg

31 October 2003

Treatment of carboxylated Wang polymer attached to a 2-unsubstituted indole derivative with a trifluoroacetic acid based mixture resulted in a side reaction: p-hydroxybenzylation at the 2-position of the indole ring. The structure of the resulting N-...

  • Article
  • Open Access
8 Citations
9,179 Views
9 Pages

Novel 4-Aroyl-3-alkoxy-2(5H)-furanones as Precursors for the Preparation of Furo[3,4-b][1,4]-diazepine Ring System

  • Hans Zimmer,
  • Christian P. Librera,
  • Sven Hausner,
  • Jeanette Bauer and
  • Adel Amer

31 October 2003

A general synthesis of tetronic acid derivatives, namely 4-aroyl-3-alkoxy-2(5H)-furanones, is achieved via the treatment of an anhydrous dimethylformamide (DMF) solution of 4-aroyl-3-hydroxy-2(5H)-furanones with 1,8-diazabicyclo[5.4.0]undec-7-ene (DB...

  • Article
  • Open Access
98 Citations
13,159 Views
12 Pages

31 October 2003

Acylation of 3-hydrazino-5,6-diphenyl-1,2,4-triazine (2) and hydrazine hydrate (7) with 4-aryl-1,3,7-triphenyl-8-oxa-1,2,6-triazaspiro[4.4]nona-2,6-dien-9-ones 5a,b gave the corresponding heterocyclic carbohydrazides 6a,b and 8a,b respectively. Conve...

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Molecules - ISSN 1420-3049