Synthesis of pyrrolo[2,3-d]pyrimidines via cyclocondensation of β-alkoxy- and β-amino-α-bromoaldehydes
✍ Scribed by Charles J Barnett; Lana M Grubb
- Book ID
- 104211315
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 62 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
A series of b-alkoxyand b-amino-a-bromoaldehydes was synthesized. The cyclocondensation of these intermediates with 2,4-diamino-6-hydroxypyrimidine yielded a series of pyrrolo[2,3-d]pyrimidines containing heteroatoms in the side chain. Choice of protecting group proved critical to the success of the bromination and cyclocondensation reactions. A number of oxygen and nitrogen protecting groups were examined and the results are described herein.
📜 SIMILAR VOLUMES
## Abstract Some fluoroaryl substituted 2‐amino‐3‐cyanopyrroles 2 were synthesized from the reaction between (2‐bromo‐1‐arylalkylidene)propanedinitriles 1 and fluoroaryl substituted aromatic amines under Gewald reaction condition, which on reaction with formamide and formic acid gave 4‐aminopyrrolo
## Abstract A series of pyrimidines were prepared by cyclocondensation of __β__‐bromovinyl aldehydes with amidine hydrochlorides in the presence of Et~3~N in excellent yields (74–95%).