Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 4606-07-9, name is Ethyl cyclopropanecarboxylate, A new synthetic method of this compound is introduced below., 4606-07-9
(a) Bis(4-methoxyphenyl)cyclopropylcarbinol: The Grignard reagent was prepared from 12.7 g (0.53 mol) of magnesium filings and 93.5 g (0.50 mol) of 4-bromoanisole in 160 ml of absolute ether. 26.0 g (0.228 mol) of ethyl cyclopropanecarboxylate were slowly added dropwise to this solution and the mixture was then heated at the reflux temperature for 2.5 hours. The reaction solution was poured onto ice and diluted with about 300 ml of saturated ammonium chloride solution, so that the resulting precipitate dissolved. The solution was then extracted with ether and the ethereal phase was washed with water, dried and concentrated. Vacuum distillation of the crude product gave 39.2 g of a fraction at 195-200 C./0.18 mm Hg.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; Hoechst Aktiengesellschaft; US4918073; (1990); A;,
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