Trimethyl orthoformate, with the CAS number 149-73-5, is a colorless liquid with a pungent odor. It has a molecular formula of C4H10O3 and a molecular weight of approximately 106.12 g/mol. The boiling point is around 101 - 102°C, and it has a density of about 0.967 g/mL at 25°C. This product is insoluble in water but soluble in most organic solvents such as ethanol, ether, and benzene. It is an important organic intermediate with high chemical reactivity due to the presence of the ortho - formate functional group.
Trimethyl orthoformate has a wide range of applications in the chemical industry. In the field of pharmaceuticals, it is used as a key intermediate in the synthesis of various drugs. For example, it can be used in the preparation of antibiotics and anti - inflammatory drugs. In the synthesis of pesticides, it serves as a crucial raw material to produce high - efficacy pesticides with low toxicity. In the fragrance industry, it is used to synthesize some special - flavored fragrance compounds, adding unique scents to perfumes and cosmetics.
When using Trimethyl orthoformate, it is necessary to follow strict safety regulations. First, it should be used in a well - ventilated area to prevent the accumulation of harmful vapors. Wear appropriate personal protective equipment, including chemical - resistant gloves, goggles, and a lab coat. During storage, it should be kept in a cool, dry place away from heat sources and open flames. When handling, use proper transfer equipment to avoid spills. In the reaction process, it is usually added drop - by - drop under controlled temperature and stirring conditions according to the specific reaction requirements.
Caso 1: Síntese farmacêutica
In the synthesis of a certain antibiotic, Trimethyl orthoformate was used as an intermediate. The reaction involved mixing Trimethyl orthoformate with a specific amine compound in the presence of an acid catalyst. The reaction was carried out at a temperature of 50 - 60°C for about 3 hours under reflux conditions. After the reaction, through a series of purification steps such as extraction, filtration, and crystallization, a high - purity antibiotic product was obtained with a yield of up to 80%.
Caso 2: Produção de pesticidas
In the production of a new - type pesticide, Trimethyl orthoformate reacted with a halogenated hydrocarbon compound. The reaction was carried out in an organic solvent under the action of a base catalyst. The reaction temperature was maintained at 80 - 90°C for about 5 hours. After post - treatment, the resulting pesticide had excellent insecticidal and bactericidal effects, and its efficacy was significantly improved compared to traditional pesticides.
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