Reference

L-Phenylalanine

L-Phenylalanine. (Tanabe Seiyaku Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59074994 A2 27 Apr 1984 Showa, 7 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C12P013-22. ICI: C12P013-22, C12R001-07; C12P013-22, C12R001-05. APPLICATION: JP 82-185885 21 Oct 1982. DOCUMENT TYPE: Patent CA Section: 16 (Fermentation and Bioindustrial Chemistry) L-Phenylalanine (I) [63-91-2] is produced from cinnamic acid a-acetoamide (II) [5469-45-4] with the culture broth, cells, or an enzyme prepn. from Bacillus or Alcaligenes. Thus, B. faecalis N-7 (FERM-P 6746) was cultured with shaking at 30° for 24 h in 100 mL medium (pH 7.0) contg. glucose 5, yeast ext. 0.5, KH2PO4 0.1, MgSO4 0.05, and II 0.5%. The cultured cells were suspended in 100 mL soln. contg. L-aspartic acid 2, II 3, bromocetyltrimethyl ammonium 0.05, and lyophilized cells of Paracoccus denitrificans IFO 12442 0.3%. The suspension was incubated at 30° for 48 h to yield 2.5 g I.

Recovery of rhodium in asymmetric hydrogenation of 2-(acylamino)propenoates

Recovery of rhodium in asymmetric hydrogenation of 2-(acylamino)propenoates. Novak, Pavel (Czech.). Czech. CS 219981 B 15 Oct 1985, 3 pp. (Czechoslovakia) CODEN: CZXXA9. CLASS: IC: C07C101-34.In this article, certain chemicals are used. One of their cas registry numbers is 12081-16-2 APPLICATION: CS 81-3757 20 May 1981. DOCUMENT TYPE: Patent CA Section: 34 (Amino Acids, Peptides, and Proteins) From the mother liquor after hydrogenation of PhCH:C(NHAc)CO2H using a catalyst prepd. from [RhCl(C2H4)2]2 and DIOP and sepn. of the produced N-acetyl-L-phenylalanine (I) an addnl. amt. of I was pptd. as NH4 salt and Rh was quant. recovered in the remainder and washings. .