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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 15, Number 5
JKCSEZ 15(5)
October 20, 1971 

Synthesis of DL-1-Amino Alkyl Phosphonic Acids and Their Derivatives (Ⅱ)
Kyung Yeon Cho, Duck Chan Kim, Yong Joon Kim
Six previously unreported N-acylated-DL-1-amino alkyl phosphonic acids were prepared; N-Acetyl-DL-1-amino-3-methyl butyl ,phosphonic acid, N-Benzoyl-DL-1-amino-2-methyl propyl phosphonic acid , N-Benzoyl-DL-1-amino-3-methyl butyl phosphonic acid, N-Benzoyl-DL-1-amino-2-methyl butyl phosphonic acid, N-Acetyl-DL-1-amino-2-methyl propyl phosphonic acid, N-Acetyl-DL-1-amino-2-methyl butyl phosphonic acid. The first four compounds were characterized, and the last two compounds were obtained in the scrude oil state. The above three DL-1-amino alkyl phosphonic acids were synthesized from iso-valeric acid, iso-caproic acid, and β-methyl valeric acid using Hell-Volhard-Zelinsky reaction, the condensation reaction with triethyl-phosphite and the modified Curtius Reaction. Iso-caproic acid and β-methyl valeric acid were prepared by the conventional methods.
275 - 280
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