Preparation of peptides and active esters by a hydrolysis-dehydration reaction with phosphonites, and the application of the reaction to polymer synthesis
β Scribed by N. Yamazaki; M. Niwano; J. Kawabata; F. Higashi
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 433 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0040-4020
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π SIMILAR VOLUMES
N-benzoyl-L-phenylalanyl-L-phenylalanine is an excellent peptide substrate for carboxypeptidase A; at 30Β°C and pH 7.5, K m is 2.6 Γ 10 -5 M while k cat is 177 s -1 (k cat /K m = 6.8 Γ 10 6 M -1 s -1 ). Indole-3-acetic acid is a noncompetitive or mixed inhibitor towards the peptide and toward hippury
Viologen polymers (PV 2 ) with carbon chain spacers were prepared by the polymeric reaction with poly(4vinyl pyridine). These polymers were used as an electrontransfer catalyst (ETC) for the reduction of azobenzene, either in a ZnΒ±PV 2 system (reductant: Zn, in CH 3 CN/ H 2 O) or in a Na 2 S 2 O 4 Β±
Reaction of Se-Alkyl phosphinosebnoates with organometallics resulted in a selective attack on the selenium atom. Sequential treatment of optically active Se-benzyl t-butylphenylphosphinoselenoate with PhLi and then with electrophiles, such as alkyl halides, an a,p-unsaturated ester, and chalcogen a
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