A synthesis of dl-hydnocarpic acid
نویسندگان
چکیده
منابع مشابه
Convenient method for synthesis of a carbon-14 analogue of DL-Phenyl alanine
DL-Phenyl alanine labeled with carbon-14 in the α-position has been synthesized from ethyl[2-14C] acetate as part of a 6-step sequence.
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The synthesis of two isomers of nn-b-fluoromalic acid has been reported in a previous publication from this laboratory (1). On the basis of elementary analysis and equivalent weights, the two isomers were undoubtedly the threo and erythro isomers of nn-fi-fluoromalic acid. However, at that time it was not possible to make a definite assignment of stereochemical configuration to the two isomers....
متن کاملSynthesis and Hydrolytic Degradation of Substituted Poly(DL-Lactic Acid)s
Non-substituted racemic poly(DL-lactic acid) (PLA) and substituted racemic poly(DL-lactic acid)s or poly(DL-2-hydroxyalkanoic acid)s with different side-chain lengths, i.e., poly(DL-2-hydroxybutanoic acid) (PBA), poly(DL-2-hydroxyhexanoic acid) (PHA), and poly(DL-2-hydroxydecanoic acid) (PDA) were synthesized by acid-catalyzed polycondensation of DL-lactic acid (LA), DL-2-hydroxybutanoic acid (...
متن کاملA 1:1 adduct of DL-threonine and arsenic acid.
The title compound, DL-threonine-arsenic acid (1/1), C4H9NO3.H3AsO4, is an unusual adduct containing zwitterionic threonine and neutral arsenic acid molecules. The component species interact by way of N-H...O and O-H...O hydrogen bonds, leading to parallel [001] chains of threonine and arsenic acid molecules which are crosslinked by further O-H...O and N-H...O bonds, resulting in a three-dimens...
متن کاملSYNTHESIS OF a-AMINO-p-HYDROXY-n-BUTYRIC ACIDS VII. AN IMPROVED SYNTHESIS OF DL-ALLOTHREONINE
Several methods are available for the synthesis of DL-threonine (l-3). However, each of these involves the separation of threonine from a mixture containing varying proportions of the isomeric allothreonine. Recently it has been reported that derivatives of rm-allothreonine may be converted to DL-threonine in excellent yields (3-5). These developments make the preparation of nn-allothreonine of...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1948
ISSN: 0306-3283
DOI: 10.1042/bj0420581