Chlorophyll
Title: Chlorophyll
CAS Registry Number: 1406-65-1
Literature References: The green pigment of plants. Higher plants and green algae contain chlorophyll a and chlorophyll b in the approx ratio of 3:1. Chlorophyll c is found together with chlorophyll a in many types of marine algae: Jeffrey, Biochem. J. 86, 313 (1963). Red algae (Rhodophyta) contain principally chlorophyll a and also chlorophyll d: Manning, Strain, J. Biol. Chem. 151, 1 (1943). Isoln by chromatography: Tswett, Ber. Dtsch. Bot. Ges. 24, 316, 385 (1906); Willstätter, Stoll, Investigations on Chlorophyll (transl by Schertz and Merz: Lancaster, 1928); Schertz, Ind. Eng. Chem. 30, 1073 (1938); Fischer-Orth-Stern, Die Chemie des Pyrrols Vol. II, part 2 (Leipzig, 1940); Zechmeister, Cholnoky, Principles and Practice of Chromatography (New York, 1943). Industrial large-scale isoln processes: Judah et al., Ind. Eng. Chem. 46, 2262 (1954). Structure: Fischer-Orth-Stern, loc. cit.; Ficken et al., J. Chem. Soc. 1956, 2273. Total synthesis of chlorophyll a: Woodward et al., J. Am. Chem. Soc. 82, 3800 (1960); Angew. Chem. 72, 651 (1960); Strell et al., ibid. 169; Woodward, Pure Appl. Chem. 2, 383 (1963). Abs config of chlorophylls a and b: Brockmann, Ann. 754, 139 (1971); Brockmann, Bode, Ann. 1974 (7), 1017. 13C-NMR study of chlorophyll a: S. Lötjönen, P. H. Hynninen, Org. Magn. Reson. 16, 304 (1981); of chlorophyll b: N. Risch, H. Brockmann, Tetrahedron Lett. 24, 173 (1983). Review of syntheses: Johnson, Sci. Prog. 49, 77 (1961). Comprehensive reviews with bibliography: Stoll, Wiedemann, Fortschr. Chem. Org. Naturst. 1, 159-254 (1938); Fortschr. Chem. Forsch. 2, 538 (1952); The Chlorophylls, L. P. Vernon, G. R. Seely, Eds. (Academic Press, New York, 1966) 679 pp; Inhoffen et al., Fortschr. Chem. Org. Naturst. 26, 284-298 (1968); Inhoffen, Pure Appl. Chem. 17, 443-460 (1968).
 
Derivative Type: Chlorophyll a
CAS Registry Number: 479-61-8
Molecular Formula: C55H72MgN4O5
Molecular Weight: 893.49
Percent Composition: C 73.93%, H 8.12%, Mg 2.72%, N 6.27%, O 8.95%
Properties: R = CH3. Sepn and purification: Anderson, Calvin, Nature 194, 285 (1962). Waxy blue-black microcrystals, usually aggregates of thin, lancet-like leaflets, mp 117-120°. [a]D20 -262° (acetone). Absorption max (ether): 660, 613, 577, 531, 498, 429, 409 nm. Freely sol in ether, ethanol, acetone, chloroform, carbon disulfide, benzene. Sparingly sol in cold methanol. Practically insol in petr ether. The alcoholic soln is blue-green with a dee