Posebna izdanja (Srpdka kraljevska akademija), Том 237 |
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Страница 17
... heating for long periods and elevated tempera- tures ) , undergoes hydrogenolysis to a methyl or methylene group186 ( as illustrated by p - aminobenzophenone which gives p - aminodiphe- nylmethane in 57 % yield ) . A similar behavior ...
... heating for long periods and elevated tempera- tures ) , undergoes hydrogenolysis to a methyl or methylene group186 ( as illustrated by p - aminobenzophenone which gives p - aminodiphe- nylmethane in 57 % yield ) . A similar behavior ...
Страница 77
... heating in benzene - ether HC- -NH2 The replacement of hydroxyl groups by hydrogen has also been observed in the case of dioxindoles , 664 * For further examples of hydrogenolysis reactions see chapters VI , VII , VIII , X , XVI ...
... heating in benzene - ether HC- -NH2 The replacement of hydroxyl groups by hydrogen has also been observed in the case of dioxindoles , 664 * For further examples of hydrogenolysis reactions see chapters VI , VII , VIII , X , XVI ...
Страница 114
... heated for one hour in tetrahydrofuran , opening of the oxide ring is accom- panied by hydrogenolysis of the primary ester group yielding methyl 4 - tosyl - a - D - digitoxoside ( XXI ) ; 3 ) by prolonged heating ( 6 hours ) of the di ...
... heated for one hour in tetrahydrofuran , opening of the oxide ring is accom- panied by hydrogenolysis of the primary ester group yielding methyl 4 - tosyl - a - D - digitoxoside ( XXI ) ; 3 ) by prolonged heating ( 6 hours ) of the di ...
Садржај
LITHIUM ALUMINUM HYDRIDE AS A REDUCING AGENT IN | 1 |
III | 7 |
Special Procedures and Preparation of Hydride Solutions | 13 |
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Acta action of lithium alcohols aldehydes aliphatic alkyl amides amino aromatic attack by lithium carbon atom carbonyl carbonyl group CH₂ CH₂O CH₂OH CH3 CH3 Chem Chemistry and Industry Chim chloride complex compounds containing converted corresponding cyclic derivatives diethyl ether dihydro diol double bond enol epoxides ester group ether solution ethylenic forcing conditions formation functional groups furnishes give H₂C H₂CO H₂O halides halogen Helv heterocyclic Hydride in Organic hydrocarbons hydrogen hydrogenolysis hydrolysis hydroxy hydroxyl group intermediate Karrer ketones lactams lactone LIAIHA lithium aluminum hydride lithium hydride means of lithium mechanism methyl mixture Monatsh nitriles nitro nitrogen nucleophilic obtained olefin optically active oxazolone oxide polar racemic react with lithium reaction reagent reducing agent reductions by lithium ring Rosenkranz saturated solvent steroids sulfinic acids sulfonate sulfonic acids temperatures tertiary tetrahydrofuran unsaturated VIII XVII XVIII XXIII yields