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Volume 31, Issue 12
Displaying 1-10 of 10 articles from this issue
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Seiji EBINE, Josuke TSUNETSUGU, Masaru SATO1973 Volume 31 Issue 12 Pages 983-1010
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (3046K) -
Kiyosi KONDO1973 Volume 31 Issue 12 Pages 1011-1032
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
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Yoshinori TAKEMOTO, Kenji NAKAO, Kyoichi FUJII, Shiro KUDO1973 Volume 31 Issue 12 Pages 1033-1037
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSThe reaction of bis (glycinato) copper (II) with vinyl acetate or acetaldehyde in the presence of basic catalyst has been studied in oder to prepare threonine without accompanied formation of allothronine.
The stronger is the basicity or the higher is the concentration of the catalyst, the higher are both the yield of threonine and the ratio of throonine/allothreonine.
The reaction time and the temperature influence both the yield and the products ratio, which varies from 1.0 to 7.7.
During the reaction, allothrenine produced decomposes or isomerizes to threonine. Therefore, threonine is obtained in greater yield than allothreonine.View full abstractDownload PDF (610K) -
Sadayoshi FURUMOTO1973 Volume 31 Issue 12 Pages 1038-1040
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSThe reaction of N, N'-dicyclohexylthiourea with excess dimethyl sulfoxide (DMSO) in the presence of hydrochloric acid gave 90% of N, N'-dicyclohexylurea together with dimethyl sulfide and sulfur. Similarly N-cyclohexyl-N'-isopropylurea, N-cyclohexyl-N'-t-butylurea, N, N'-di-t-butylurea, N, N'-di-sec-butylurea, N-sec-butyl-N'-isopropylurea and N-sec-butyl-N'-t-butylurea were obtained from the corresponding thioureas.View full abstractDownload PDF (438K) -
Hiroshi NAKAMOTO1973 Volume 31 Issue 12 Pages 1041-1044
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
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Shoji MATSUI1973 Volume 31 Issue 12 Pages 1045-1048
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
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[in Japanese], [in Japanese], [in Japanese]1973 Volume 31 Issue 12 Pages 1049-1050
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (243K) -
[in Japanese], [in Japanese]1973 Volume 31 Issue 12 Pages 1050
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (124K) -
[in Japanese], [in Japanese], [in Japanese]1973 Volume 31 Issue 12 Pages 1051
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (140K) -
[in Japanese], [in Japanese]1973 Volume 31 Issue 12 Pages 1052
Published: December 01, 1973
Released on J-STAGE: November 13, 2009
JOURNAL FREE ACCESSDownload PDF (92K)
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