British Abstracts: Pure chemistry and physiology. ser. A1937 |
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... acid , also obtained from urso- choladienic acid ( III ) , m.p. 150 ° , [ x ] 20 -43.75 ° in CHCI , ( and chenocholadienic acid ) , by reduction with PtO - H . Partial reduction of ( I ) in EtOH with PtO - H2 gives 3 - hydroxy - 7 ...
... acid , also obtained from urso- choladienic acid ( III ) , m.p. 150 ° , [ x ] 20 -43.75 ° in CHCI , ( and chenocholadienic acid ) , by reduction with PtO - H . Partial reduction of ( I ) in EtOH with PtO - H2 gives 3 - hydroxy - 7 ...
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... acid and ( COCI ) , in CH ] with Et sodio - z - acetylbrassylate ( I ) in Et2O or CH affords u - ketotetratriacontanoic acid ( II ) , m.p. 107.7 ° ( Et ester , m.p. 80-9 ° ) , and 2 - acetyl - lauric acid , m.p. 73-5 ° . ( II ) when ...
... acid and ( COCI ) , in CH ] with Et sodio - z - acetylbrassylate ( I ) in Et2O or CH affords u - ketotetratriacontanoic acid ( II ) , m.p. 107.7 ° ( Et ester , m.p. 80-9 ° ) , and 2 - acetyl - lauric acid , m.p. 73-5 ° . ( II ) when ...
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... acid ( III ) [ Me ester , m.p. 179-181 ° ( corr . ) ] has m.p. 280- 281 ° ( corr .; decomp . ) . Hydrogenation ( Pt in AcOH ) of ( II ) affords B - 3 - acetoxyætioallocholanic acid , m.p. 247-249 ° ( corr . ) , [ Me ester , m.p. 142-144 ...
... acid ( III ) [ Me ester , m.p. 179-181 ° ( corr . ) ] has m.p. 280- 281 ° ( corr .; decomp . ) . Hydrogenation ( Pt in AcOH ) of ( II ) affords B - 3 - acetoxyætioallocholanic acid , m.p. 247-249 ° ( corr . ) , [ Me ester , m.p. 142-144 ...
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absorption spectra Acad acid action activity adsorbed alkali alloys Amer Anal analysis anorg approx atoms bands Bull calc carbon catalyst cathode CCl4 Chem chemical Chim chloride CO₂ coeff colloidal compounds Compt concn const cryst crystals Curie point curves decomp decreases described determined dielectric dipole discussed dissociation effect electric electrolytes electron diffraction electrons emission energy entropy equation equilibrium EtOH eutectic ferromagnetic films formation formed gases H₂ H₂O heat hydrogen hydrolysis increases infra-red intensity ionisation ions lattice layer liquid magnetic measured metals method mixtures neutrons obtained oxide particles Phys Physical Rev Physicochim polarisation potential pptd presence pressure Proc protons Radium Raman reaction rend Russ salts solid solid solutions solubility solutions solvent Sovietunion spectrum structure surface surface tension temp theory thermal titration ultra-violet vals vapour velocity viscosity X-ray Zentr