A series of novel (R)-5-phenylfuran-2-yl cyanomethyl butanoates were prepared by Pseudomonas cepacia lipasecatalysed dynamic kinetic resolution in toluene. The method exploits a basic resin both for the racemization and formation of phenylfuran-based cyanohydrins and for the decomposition of acetone
✦ LIBER ✦
Lipase catalysed resolution of ferrocene cyanohydrin: access to novel ferrocenyl aminoalcohols and diamines
✍ Scribed by James A.S. Howell; Kristina Humphries; Patrick McArdle; Desmond Cunningham; Giovanni Nicolosi; Angela Patti; Martin A. Walsh
- Book ID
- 104361119
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 199 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0957-4166
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✦ Synopsis
R)-(+)-Ferrocene cyanohydrin acetate, obtained by enzymatic acylation of ferrocene cyanohydrin, may be transformed by reduction and alkylation into novel ferrocenyl I~-aminoalcohols. Substitution of acetate by methanolic HNMe2 proceeds with racemisation, but significant diastereoselection is observed on Strecker reaction using (-)-PhCH(Me)NHMe. (~ 1997 Elsevier Science Ltd
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2003
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⚖ 255 KB