Detail of "23567-25-1"

Reference

L-Talose

L-Talose. Kubala, Jozef; Caplovic, Jan; Svec, Jozef (Czech. ). Czech. CS 224984 B 1 Dec 1984,4 pp. (Slovak). (Czechoslovakia). CODEN: CZXXA9. CLASS: IC: C13K013-00. APPLICATION: CS 82-5996 13 Aug 1982. DOCUMENT TYPE: Patent CA Section: 44 (Industrial Carbohydrates) Section cross-reference(s): 33 Treating an aq. soln. of L-talose (I) [23567-25-1] and L-galactose [15572-79-9] with an alc. soln. of p-toluidine (II) [106-49-0] gave cryst. N-p-tolyl-L-talosylamine [96550-31-1] which was decompd. in an aq. suspension and II was steam-distd. The residual soln. was clarified with C and concd., and pure I in 87.5% yield was crystd. from MeOH.

L-Galactose

L-Galactose. Kubala, Jozef; Caplovic, Jan; Svec, Jozef (Czech.). Czech. CS 227527 B 1 Sep 1985, 6 pp. (Czechoslovakia) CODEN: CZXXA9. CLASS: IC: C07H003-02. APPLICATION: CS 82-6018 16 Aug 1982. DOCUMENT TYPE: Patent CA Section: 33 (Carbohydrates) A soln. of 1-deoxy-1-nitro-L-galactitol (I) in aq. NaOH was added dropwise to aq. H2SO4, the soln. neutralized with Na2CO3 and then dild. 23567-25-1 and 94481-72-8 are cas registry numbers of chemicals which are used as reagents here. with MeOH, and the pptd. Na2SO4 was filtered off. The filtrate was deionized on ion exchangers and then concd. to give 80% L-galactose (II). By an analogous process, 69% II was obtained from a mixt. of I and 1-deoxy-1-nitro-L-talitol prepd. from L-lyxose, MeNO2, and NaOMe. .