β-Alkyl and β-Alkyl-α-Hydroxy Carboxylic Acid Derivatives from Radical or Ionic 1,4 Addition of Dialkylaluminum Chlorides to α,β-Unsaturated N-Acyl Urethanes

✍ Scribed by Dipl.-Chem. Karola Rück; Prof. Dr. Horst Kunz

• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 351 KB
• Volume: 30
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.199106941

✦ Synopsis

and treated with lBuCl (1.18 g, 12.8 mmol) directly after filtration. The mixture was stirred at room temperature for 12 h before the orange solution was evaporated to dryness. Recrystallization of the residue from toluene (ca. 30 mL) affords a yellow crystalline powder (2.50 g, 40%). which decomposes at 260 "C. Correct elemental analysis (C,H); IR (Nujol):