Acetals and ethers, XVII. One- or two-step syntheses of 2-(2-alkoxyethyl)-1,3-dioxacyclanes
β Scribed by Andrzej Piasecki
- Publisher
- Springer Vienna
- Year
- 1986
- Tongue
- English
- Weight
- 330 KB
- Volume
- 117
- Category
- Article
- ISSN
- 0026-9247
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
3-Methyl-1,2,4-benzotriazine and some of its derivatives were prepared in moderate yields (50-70%) via a reductive cyclization by a PtO 2catalyzed hydrogenation of the corresponding 2nitrophenylhydrazones of the pyruvic acid. The latter compounds were obtained in yields higher than 90% by reacting 2
## Abstract Syntheses of 1,3β2,4βcalix[4]bisβcrown ethers (**1** and **2**) fixed in the 1,3βalternate conformation by 1,3β and 2,4βbridges made of two modified polyether chains each containing two 1,2βphenylene residues and one pyridine or anisyl unit are reported. The structures of compounds **1*