Intra-intermolecular polymerization of glutaraldehyde
β Scribed by Overberger, C. G. ;Ishida, S. ;Ringsdorf, H.
- Book ID
- 104532372
- Publisher
- John Wiley and Sons
- Year
- 1962
- Weight
- 123 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0022-3832
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By treatment with methoxide anion on polymeric support (IRA 900), chiral b-oxo or b-sulphonylamides 2 bearing an a,b-unsaturated ester gave 3,4-disubstituted pyrrolidin-2-ones 3 as easily separable diastereomeric mixtures in good yield and moderate-to-good stereoselection. The polymeric reagent was
Pyridoxylated adult human hemoglobin (HbAo) was prepared using a one molar equivalent of pyridoxal5-phosphate (PLP) per heme and reduced with either NaCNBH, or NaBH,. A separate sample was pyridoxylated and passed through a mixed-bed ion exchange column without reduction. All three preparations had