5-브로모-2-클로로-4'-에톡시디페닐메탄

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

• 예방조치문구

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

5-브로모-2-클로로-4'-에톡시디페닐메탄 화학적 특성, 용도, 생산

• 용도

  5-Bromo-2-chloro-4'-ethoxydiphenylmethane is a hydrocarbon derivative and can be used as an intermediate for dapagliflozin.

• Synthesis

  Oxalyl chloride (0.8 mL) was added to a solution of 5-bromo-2-chlorobenzoic acid (2 g) in dichloromethane (20 mL) and dimethylformamide (0.2 mL) under a nitrogen atmosphere. The reaction mixture was stirred for one hour at 25° C to 30° C. After completion of the reaction, the reaction mixture was concentrated under a vacuum at 40° C to 45° C. to obtain an oily residue. The oily residue was dissolved in dichloromethane (20 mL) and cooled to 0° C. To this solution, phenol (1.1 mL) and aluminium chloride (2.3 g) were added at 0° C. to 5° C. The reaction mixture was stirred at 0° C to 5° C for 2 hours. The reaction mixture was allowed to warm to about 20° C, and triethylsilane (3.4 mL) was slowly added to it at the same temperature. The reaction mixture was stirred for about 36 hours from 20° C to 25° C. After completion of the reaction, 4-bromo-1-chloro-2-(4-ethoxybenzyl)benzene was obtained by further purification.

5-브로모-2-클로로-4'-에톡시디페닐메탄 준비 용품 및 원자재

5-브로모-2-클로로-4'-에톡시디페닐메탄 공급 업체

Global(557)Suppliers