## Abstract This study represents a facile synthesis of building blocks (**1–3**) of crown ethers and amine precoursers (**4a‐d**). The study also involves synthesis of mono and dibenzo __N, N__‐disubstituted diaza 18‐crown‐6 derivatives with high yield without chromatographic purification and high
Preparation of chloromethyl derivatives of dibenzo-18-crown-6 and syntheses based on them
✍ Scribed by A. K. Tashmukhamedova; I. A. Stempnevskaya; I. Yu. Morozova; E. G. Sirotenko
- Publisher
- Springer US
- Year
- 1989
- Tongue
- English
- Weight
- 427 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0009-3122
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## Abstract Acylation reactions of benzocrown ethers with __N__‐phthalimido‐protected derivatives of β‐alanine and 11‐aminoundecanoic acid, respectively, were investigated in acid catalysis by using the Eaton reagent. Deprotection of the obtained compounds by hydrazinolysis afforded derivatives wit
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