The synthesis of iminodiacid 2, a derivative of valine, was found to be difficult at the point of attempting to functionalize the imino-nitrogen to form a tertiary amine. Nonetheless, a route was discovered starting from ¢thydroxyisovaleric acid, ethanolamine and maleimide. After esterification, the
Synthesis of a sterically congested diazirine: 2-azi-camphane
✍ Scribed by René Kupfer; Murray G. Rosenberg; Udo H. Brinker
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 134 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
The synthesis of 2-azi-eamphane has been achieved despite the fact that the spiroeyelie carbon eente~ is sterically congested. Although the yield is somewhat low, the highly pure diazirine can be used as a precursor for the burgeoning class of sterically congested carbenes.
📜 SIMILAR VOLUMES
Methyl 2-[2,2,2-tris(methoxycarbonyl)ethyl]acrylate and methyl 2-[2,2,2-tris(ethoxycar-bony1)ethyllacrylate [M(TE)EA] were synthesized for the first time by the reaction of methyl 2-(bromomethyl)acrylate with the corresponding tris(alkoxycarbony1)methane in the presence of triethylamine at room temp
## Abstract 2,2,4,4‐Tetramethyl‐3‐pentanimine (3) is efficiently prepared by a Barbier‐type reaction of pivalonitrile (1) with an excess of __tert__‐butyl chloride (2) and metallic lithium in ether. Its purification by extraction into aqueous acid and slow hydrolysis permit an inexpensive and very