A Practical Synthesis of 4'-Methylbiphenyl-2-carbonitrile as a Key Intermediate of Angiotensin II Antagonists. -A novel and practical synthesis of the title carbonitrile (VI), which is applicable to industrial scale production, is described. The key feature of the short sequence is the Pdcatalyzed
ChemInform Abstract: New Practical Syntheses of 4′-Methylbiphenyl-2-carbonitrile and -2-carbaldehyde.
✍ Scribed by Dominique Goubet; Pascal Meric; Jean-Robert Dormoy; Patrice Moreau
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 28 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
New Practical Syntheses of 4'-Methylbiphenyl-2-carbonitrile and -2-carbaldehyde.
-A simple and efficient synthesis of the title biphenyl-carbonitrile (V) and carbaldehyde (III) is presented, involving the Mn-catalyzed nucleophilic aromatic substitution of commercially available ochlorobenzaldimine (I) with Grignard reagent (II) as key step. -(GOUBET,
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New Route to 4-Alkoxyquinazoline-2-carbonitriles. -The title compounds (III) and (VI) are prepared from their corresponding N-arylimino-1,2,3-dithiazoles (I) and (IV) by heating with an alcohol in the presence of a base. The yield of the products are improved, in a shorter reaction time, by microwa
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