# US 5,350,696 A · 2-acetyl-6-cyanopyridines and their use as intermediates in the synthesis of oligo-2,6-pyridines

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- Number: US 5,350,696 A
- Document ID: US5350696A
- Status: Granted
- Kind: A
- Application number: 08/046,221
- Filed: 1993-04-13
- Granted: 1994-09-27
- Earliest claimed: 1993-04-13
- Assignees: Sterling Winthrop Inc.
- Inventors: Robert A. Snow; Daniel J. Delecki; Chandra R. Shah; K. Robert Hollister
- Web page: https://patentgrep.com/patent/US5350696A

## CPC

- C07D 213/84: Nitriles
- C07D 405/06: linked by a carbon chain containing only aliphatic carbon atoms
- C07F 7/1804: {Compounds having Si-O-C linkages (Si-O-acyl linkages C07F7/1896)}
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)

## Abstract

The present invention is directed to 2-acetyl-6-cyanopyridine compounds that are useful as intermediates in the synthesis of oligo-2,6-pyridines. The present invention is also directed to new, simpler, less expensive methods for synthesizing such oligopyridines using the novel 2-acetyl-6-cyanopyridine compounds as intermediates.

## Claims

### Claim 1

A compound having a structure shown in the formula: ##STR9## wherein --R is ##STR10## wherein X and Y are independently selected from the group consisting of H, OCH.sub.3, and NO.sub.2 ; or X and Y together form the group O--CH.sub.2 --O; and with the proviso that only one of X and Y is NO.sub.2.

### Claim 2 (depends on 1)

The compound of claim 1 having the structure: ##STR11##

### Claim 3 (depends on 1)

The compound of claim 1 having the structure: ##STR12## wherein X and Y are independently selected from the group consisting of H, OCH.sub.3, and NO.sub.2 ; or X and Y together form the group O--CH.sub.2 --O; and with the proviso that only one of X and Y is NO.sub.2.