Application of 91273-58-4, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 91273-58-4, name is ((3-Bromo-2-methylpropoxy)methyl)benzene belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.
EXAMPLE 3 rac. E-1-benzyloxy-2-methyl-5-hepten-4-ol A slurry of 0.55 g. (0.0236 mole) of magnesium powder in 15 ml. of anhydrous tetrahydrofuran was stirred and heated at reflux while a few drops of a solution of 5 g. (0.0206 mole) of rac. 3-benzyloxy-2-methyl-1-propyl bromide in 30 ml. of anhydrous tetrahydrofuran was added followed by a crystal of iodine. After the Grignard reaction had begun, the remainder of the bromide solution was added dropwise over 35 min. at reflux temperature. The reaction mixture was stirred and heated under reflux for an additional hour then cooled 0-5 C. (ice bath) while a solution of 1.56 g. (0.022 mole) of crotonaldehyde in 15 ml. of anhydrous tetrahydrofuran was added over a 15 min. period. After stirring at room temperature for 2.5 hours, the reaction mixture was poured onto saturated aqueous ammonium chloride and the product was extracted with ether and worked up as in Example 1. The residue (4.62 g.) was chromatographed on 250 g. of silica gel. Elution with 4:1 parts by volume and 2:1 parts by volume hexane-ether gave 3.36 g. of rac. E-1-benzyloxy-2-methyl-5-hepten-4-ol as a pale yellow oil, b.p. 110-120 C. (bath temperature) (0.075 mm Hg.).
The synthetic route of ((3-Bromo-2-methylpropoxy)methyl)benzene has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Hoffmann-La Roche Inc.; US4041058; (1977); A;,
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