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Amino Acids and Peptides (SPR Amino Acids, Peptides by J. H. Jones PDF

By J. H. Jones

ISBN-10: 0851861946

ISBN-13: 9780851861944

Professional Periodical reviews offer systematic and targeted evaluate assurance of development within the significant parts of chemical study. Written by means of specialists of their expert fields the sequence creates a different provider for the lively study chemist, delivering ordinary severe in-depth money owed of development particularly parts of chemistry.

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Additional info for Amino Acids and Peptides (SPR Amino Acids, Peptides (RSC))vol.21

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364 The volume of work reported by Grigg's group, on amino acid-derived imines, can only be described as substantial, with several full papers appearing in the year under review. a-Amino acids and aa-disubstituted amino acids react with pyridoxal and E-phenylmaleimide to give two series of cycloadducts, one ( 57 ) from from azomethine ylides from decarboxylated pyridoxal imines, the other ( 58 azomethine ylides formed by 1,2-prototropy. These results are relevant to the mechanism of Strecker degradation and will also assist progress in establishing the mode of action of decarboxylases.

20, p. lS7 Protected (2B,3s)-3-Hydroxyproline ( 38 ) is obtained in better than 99% optical purity by yeast-mediated reduction of the corresponding 3-0x0-pro1 ine . While noting that earlier sections have claimed L p ~ i a d n o A c i d s . 17* Standard routes based on azlactones (see also Refs. 81,82,185) include an unusual applicationl7' of DWF-imines RIC=CHBne2 (R = various 6-membered diaza-heterocycles) for the preparation of corresponding B-RIM-substitutedmethylene-a-amino acids. , 17. '71 L u .

Attention continues to be given to reactions of the B H n group that preserve Amino Acids 45 46 Amino Acids and Peptides other structural features intact. 3s7 E-Arenesulphonyl groups can be removed from a-amino acids carrying hydroxyalkyl side-chains by electrolysis using phenol as proton source;3sathe earlier-reported alkaline hydrolysis regime359 was tried, without success. 364 The volume of work reported by Grigg's group, on amino acid-derived imines, can only be described as substantial, with several full papers appearing in the year under review.

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Amino Acids and Peptides (SPR Amino Acids, Peptides (RSC))vol.21 by J. H. Jones


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