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Grussner

The flasks E and F are provided with marks about half-way up to indicate 45 and [Pg.41]

Zeiscl, [hid 7 4 I ncdikt and BaiulxTgcr, Ibid. Herzig, Ibid, g, 544. Cf. Pomeranz, Ibid. 12, 383. J. Herzig and H. Meyer, Ibid. 7. 437- [Pg.44]

Instead of red phosphorus and water the potash bulbs contain a solution consisting of arsenious anhydride [Pg.46]

It has been stated that this method is unreliable on account of the action of mcthylic iodide on the arsenical liquid but further investigation shows that accurate re suits are obtained if the arsenious solution is less con [Pg.47]

Zeisel s method does not distinguish between me-thoxyl and ethoxyl should this be necessary, the alkyl iodide must be prepared in quantity sufficient for its [Pg.47]


Schider and A. Gussner, Helv. Chim. Acta, 32, 821 (1949). 0. Schider and A. Gussner, Helv. Chim. Acta, 34, 2211 (1951). A. Grussner, J. Hellerbach, and 0. Schider, Helv. Chim. [Pg.311]

Benedikt and Grussner have proposed the determination of the methyl number in the analysis of essential oils. Whilst this process may have some vaAue in the examination of the constitution of a compound, it is very rarely necessary to use it in the analysis of essential oils. The methyl number (which is a somewhat fallacious term as it includes other Alkyl radicles) is understood as the number of miUigrams of methyl yielded by the gram of the substance when heated with hydriodic acid. From 0 2 to 0 3 gram of the oil is heated with hydriodic acid of specific. gravity 1 7 and the methyl iodide formed collected in a suitable receiver,... [Pg.351]

Hellerbach, J. Grussner, A. Schnider, O. Helv. Chim. Acta (HCACAV) 39, 429 (1956). Ehrhart, Ruschig 1,131-132. [Pg.1156]

Di-0-isopropylidene-2-keto-L-gulonic acid monohydrate (- DAG) [18467-77-1 ] M 292.3, m 100-101", 103°, [oc] s -21.6° (c 2.3, MeOH). Dissolve in Et20, filter, dry (MgS04), filter, evaporate to give a yellow oil. Addition of one drop of H2O induces crystn to the monohydrate, which also forms rhombic crystals by recrystn from 95% EtOH-H20 at room tempereture. [Flatt et al. S 815 1979 Reichstein and Grussner HCA 17 311 1934 Takagi and Jeffrey Acta Cryst Sect B 34 2932 1978 cf Org Synth 55 80 1976. ... [Pg.186]

Schnider, O. and Grussner, A. Oxy-morphinane - Optisch aktive 3-Oxymorphinane, Helv. Chim. Acta 1951, 34, 2211-2217. [Pg.169]

Table 20.3 Features of the steps in the Reichstein-Grussner synthesis. Table 20.3 Features of the steps in the Reichstein-Grussner synthesis.
Bretschneider, H., Grassmayr, K., Hohenlohe-Oehringen, K. and Grussner, A. US Patent 3,654,357 April 4, 1972 assigned to Hoffmann-La Roche Inc. [Pg.1771]

The industrial production of ASA has been dominated by the Reichstein-Grussner process (Fig. 8.29) [146] since the mid 1930s. Although the intermedi-... [Pg.364]

A. Grussner, E. Jaeger, J. Hellerbach, andO. Schnider, Helv. Chim. Acta42,2431 (1959). [Pg.36]


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See also in sourсe #XX -- [ Pg.40 ]




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Reichstein-Grussner process

Reichstein-Grussner synthesis

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