Detail of "75-39-8"

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CAS Number:
75-39-8
Name:
Ethanol, 1-amino-(8CI,9CI)
Molecular Structure:
Formula:
C2H7 N O
Molecular Weight:
61.10
Synonyms:
Acetaldehydeammonia (6CI,7CI); 1-Aminoethanol; Aldehyde ammonia; a-Aminoethyl alcohol
Melting Point:
95-97°C (dec.)
Boiling Point:
109-111°C
Hazard Symbols:
Xi
Risk Codes:
R36/37/38;
Safety:
It readily decomposes into acetaldehyde and ammonia when heated, causing the hazards of these substances. Moderate fire and explosion hazard when exposed to heat or flame. Can react with oxidizing materials. When heated to decomposition it emits toxic fumes of NH₃ and NO_x. Details

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Preparation of 3-Nitro-2,4,6-trihydroxybenzoic acid esters, as herbicides: Preparation of 3-Nitro-2,4,6-trihydroxybenzoic acid esters, as herbicides. 75-39-8 is the cas registry number of certain chemical which is used as reagents here.. Honda, Ichiro; Matsushita, Hajime; Shibagaki, Makoto; Yoneyama, Koichi; Yoshida, Shigeo (Nippon Tabako Sangyo K. K., Japan). Jpn. Kokai Tokkyo Koho JP 04049272 A2 18 Feb 1992 Heisei, 7 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C07C275-28. ICS: A01N047-30; C07C273-18; C07C275-30; C07C275-34. APPLICATION: JP 90-157632 18 Jun 1990. DOCUMENT TYPE: Patent CA Section: 5 (Agrochemical Bioregulators) Section cross-reference(s): 25 The title esters I (X = H, Me; Y = halo-, trihalomethyl-, C1-4 alkyl-, and/or C1-4 alkoxy-substituted Ph; n = 2-4), useful as herbicides, are prepd. by nitration of phloroglucinic acid (II) and esterification of the product 3-nitro-2,4,6-trihydroxybenzoic acid (III) with with HO(CH2)nNXCONHY in the presence of condensation agents. II (18.8 g) was treated with 60 vol.% H2SO4 and 60% HNO3 at 0° for ~3 h to give 3 g III, which was treated with N-(w-hydroxyethyl)-N'-phenylurea (prepn. from 1-aminoethanol and Ph isocyanate given) and DCC in THF at room temp. for 3 h to give 50% 3-nitro-2,4,6-trihydroxybenzoic acid 2-(3-phenylureido)ethyl ester (IV). IV inhibited photosynthetic electron transport in chloroplasts with pI50 (-log of 50% inhibitory concn.) of 5.6. .

Catalyst for preparation of methyl ethyl carbonate by ester exchange reaction: Catalyst for preparation of methyl ethyl carbonate by ester exchange reaction. Yao, Jie; Zeng, Yi; Wang, Yue; Wang, Gongying (Chengdu Organic Chemicals Co., Ltd., Chinese Academy of Sciences, Peop. Rep.Chemical with cas number 75-39-8 also plays role. China). Faming Zhuanli Shenqing Gongkai Shuomingshu CN 1597113 A 23 Mar 2005, 5 pp. (Chinese). (People's Republic of China). CODEN: CNXXEV. CLASS: ICM: B01J031-02. ICS: C07C069-96; C07C068-06. APPLICATION: CN 2003-135834 17 Sep 2003. DOCUMENT TYPE: Patent CA Section: 67 (Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms) The catalyst is the composite material of sodium methoxide and alcamines compd. at a molar ratio of 0.005-0.1. 75-39-8 is also in the experiment. The alcamins compd. is from ethanolamine, propanol amine, p-aminophenol, etc. The ester exchange reaction can be carried out at 50-100° for 1-5 h in the presence of 0.001-1% of catalyst. The catalyst has high activity and good soly., and can be used circularly. ..