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Carbohydrazide is the chemical compound with the formula OC(N 2 H 3) 2. It appears as a white solid that is soluble in water, [ 1 ] [ 2 ] but not in many organic solvents, such as ethanol, ether or benzene.
Carbohydrazide is the simplest carbazide, with another common carbazide being diphenylcarbazide, which is used as an analytical reagent. [1] Diphenylcarbazide forms an intense blue color with chromium in the hexavalent state. It has an absorptivity coefficient of about 3400. That means very small amounts of chromium can be detected; 25 ...
An applied example is a synthesis of sunitinib begins by mixing 5-fluoroisatin slowly into hydrazine hydrate. [9] After 4 hours at 110 °C, the indole ring structure has been broken into (2-amino-5-fluoro-phenyl)-acetic acid hydrazide with reduction of the ketone at the 3-position.
Hydrazines (R 2 N−NR 2) are a class of chemical compounds with two nitrogen atoms linked via a covalent bond and which carry from one up to four alkyl or aryl substituents. . Hydrazines can be considered as derivatives of the inorganic hydrazine (H 2 N−NH 2), in which one or more hydrogen atoms have been replaced by hydrocarbon grou
Structure of the hydrazone functional group. Hydrazones are a class of organic compounds with the structure R 1 R 2 C=N−NH 2. [1] They are related to ketones and aldehydes by the replacement of the oxygen =O with the = N−NH 2 functional group. They are formed usually by the action of hydrazine on ketones or aldehydes. [2] [3]
Diphenylcarbazide is a white solid that is scarcely soluble in water, [3] but readily soluble in organic solvents like acetone, hot ethanol and acetic acid. [4] It forms colored complex compounds with certain metal ions.
Carbohydrate Structure Database (CSDB) is a free curated database and service platform in glycoinformatics, launched in 2005 [2] by a group of Russian scientists from N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences.
structure ref Lithium dicalcium tricarbide hydride Ca 2 LiC 3 H tetragonal P4 mbm: a=6.8236 c=3.7518 Z=2 silver 2.36 has C 3 4 ...