## Abstract A series of double armed diaza‐15‐crown‐5 ethers **(9a ‐ 16a)** and diaza‐18‐crown‐6 ethers **(9b ‐ 16b)** have been prepared by the Mannich reaction of 2,6‐disubstituted phenols with the corresponding __N,N__'‐dimethoxymethyldiaza‐crown ethers in benzene. The crystal structures of the
4-(3-(Phtalhydrazide)azo)N-phenylaza-15-crown-5. Synthesis and Properties.
✍ Scribed by Rodica Daniela Baratoiu; Anca Elena Barbu; Lucia Mutihac; Miron Teodor Caproiu; Constantin Draghici; Radu Socoteanu; Titus Constantinescu
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 14 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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📜 SIMILAR VOLUMES
4-15N-2,3,5-Trimethylpyrazine (A) was synthesized by dechlorination of 4-15N-6-chloro-2,3,5-trimethylpyrazine (I), the key intermediate, derived from 15N-D~alanine (a). 1-15N-2, 3,5-Trimethylpyrazine (2) was prepared by decarboxylation of 1-15N-2,3,5-trimethyl-pyrazine-6- carboxylic acid (10) obtai
## Abstract A series of monoaza‐15‐crown‐5 ethers (2b‐2h) having 4′‐hydroxy‐3′,5′‐disubstituted benzyl groups have been prepared by the Mannich reaction of 2,6‐disubstituted phenols with the corresponding __N__‐methoxymethylmonoaza‐crown ethers. Competitive transport through a chloroform membrane b