𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of crown ethers bearing 2,4-dinitrophenylhydrazone

✍ Scribed by Saziye Abdurrahmanoglu; Mustafa Bulut

Publisher
Journal of Heterocyclic Chemistry
Year
2007
Tongue
English
Weight
352 KB
Volume
44
Category
Article
ISSN
0022-152X

No coin nor oath required. For personal study only.

✦ Synopsis

We dedicate this work to a distinguished organic chemist, Çakıl ERK, who died in the summer of 2005.

The o-dihydroxy-(2a-b), dimethoxy (3a-b), ethylendioxy-(4a-b) and macrocyclic polyethers (4c-i) are the initial compounds while the 2,4-dinitrophenylhydrazone compounds (5a-d, 6a-i) represent new derivatives. Novel hydrazone compounds were synthesized from the corresponding cyclic ketones (4a-i) and 2,4-dinitrophenylhydrazine in H 2 SO 4 /EtOH/H 2 O solution at room temperature for 1 h. The structures of obtained hydrazone compounds were confirmed by 1 H-NMR, 13 C-NMR, EI-MS, IR spectra and elemental analysis.

📜 SIMILAR VOLUMES

The synthesis of novel crown ethers, par
The synthesis of novel crown ethers, part X, 4-propyl-and 3-ethyl-4-methylchromenone-crown ethers
✍ Esra Tiftikçi; ÇAkil Erk 📂 Article 📅 2004 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 60 KB

## Abstract Starting from ethyl propionylacetate, and ethyl 2‐ethylacetoacetate we prepared 4‐propyl‐7,8‐, 4‐propyl‐6,7‐, 3‐ethyl‐4‐methyl‐7,8‐ and 3‐ethyl‐4‐methyl‐6,7‐dihydroxy‐2__H__‐chromenones which were allowed to react with the bis‐dihalides or ditosylates of glycols in DMF/Na~2~CO~3~ to aff

Crown Ether-Bearing Dihydroazulens[1]: S
Crown Ether-Bearing Dihydroazulens[1]: Synthesis and Photochromism of a Benzo[15]crown-5 Derivative
✍ Fischer, Christian ;Daub, Jörg 📂 Article 📅 1993 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 395 KB 👁 1 views

Photochromism / Photoresponsive crown ether Photosensitive crown ether 1 composed of 1,8a-dihydroazulene as a photodynamic unit and a benzo[l5]crown-5 ether subgroup has been synthesized from C-Tsubstituted cycloheptatriene 8, which has been obtained by nucleophilic addition of 4-acetylbenzo[l5]crow