1-[(AMMONIOOXY)METHYL]-4-CHLOROBENZENE CHLORIDE

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P264：취급 후에는 손을 철저히 씻으시오.

  P264：취급 후에는 손을 철저히 씻으시오.

  P270：이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.

  P271：옥외 또는 환기가 잘 되는 곳에서만 취급하시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P363：다시 사용전 오염된 의류는 세척하시오.

  P501：...에 내용물 / 용기를 폐기 하시오.

1-[(AMMONIOOXY)METHYL]-4-CHLOROBENZENE CHLORIDE 화학적 특성, 용도, 생산

• 제조 방법

  To a solution of 83.7 gm (1.5 moles) of potassium hydroxide in 560 ml of water is added in turn with stirring, 300 gm (0.985 mole) of dipotassium hydroxylaminedisulfonate and 161 gm (1.0 mole) of 4-chlorobenzyl chlo­ride. The stirred mixture is heated on a steam bath for 1.75 hr. After cool­ing, the precipitate is filtered off and refluxed for 3 hr in 1000 ml of 1.5 Ν sulfuric acid. The reaction mixture is then cooled and made strongly alkaline with a 15% aqueous sodium hydroxide solution. The mixture is then extracted with ether repeatedly. The ether extracts are combined and evaporated to dryness. The solid residue (crude free base, 80 gm, i.e., 51.5% of theory, m.p. 35-38°C) is taken up in 1 liter of ether. Anhydrous hydrogen chloride is bubbled through this solution to precipitate the hy­drochloride salt. The yield is 59 gm (31%, overall), m.p. 243-244°C (dec); the free base has b.p. 100°C/1 mm Hg. In this preparation, the hydrolysis of the alkylated dipotassium hydroxyl­aminedisulfonate with only 1 liter of 1.5 Ν sulfuric acid seems somewhat skimpy. We suggest that a higher level of sulfuric acid be considered at that stage of the reaction, if the alkylation has indeed gone to completion. Once the O-alkylhydroxylamine has been prepared by this reaction, it may be N-alkylated to produce an N,Ο-dialkylhydroxylamine.
  The preparation of O-phenylhydroxylamine has been a synthetic chal­lenge for some time since it is quite unstable. Using hydroxylamine-O-sulfonic acid. A small quantity of this compound has been prepared [36]. Reaction conditions probably require further study to improve the yield. Extension of the reaction to the preparation of O-alkylhydroxylamines would be of interest.

1-[(AMMONIOOXY)METHYL]-4-CHLOROBENZENE CHLORIDE 준비 용품 및 원자재

1-[(AMMONIOOXY)METHYL]-4-CHLOROBENZENE CHLORIDE 공급 업체

Global(59)Suppliers

1-[(AMMONIOOXY)METHYL]-4-CHLOROBENZENE CHLORIDE 관련 검색