눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P310
즉시 의료기관(의사)의 진찰을 받으시오.
삼켰다면 즉시 의료기관(의사)의 도움을 받으시오.
P370+P378
화재 시 불을 끄기 위해 (Section 5. 폭발, 화재시 대처방법의 적절한 소화제)을(를) 사용하시오.
P405
밀봉하여 저장하시오.
P501
...에 내용물 / 용기를 폐기 하시오.
2,4-DINITROBENZENESULFENYL CHLORIDE C화학적 특성, 용도, 생산
용도
2,4-Dinitrobenzenesulfenyl chloride was used in preparation of chlorine and bromine biphenyls.
제조 방법
CAUTION: This reaction should be carried out in a hood behind a safety shield. The product decomposes explosively if heated above 90-100°C .
To a 500-ml, three-necked flask equipped with a mechanical stirrer, distillation column, and distillation head is added 100 gm (0.25 mole) of dry 2,4-dinitrophenyl disulfide and 250 ml of ethylene chloride. The contents are heated with an oil bath at 125°C until 30-40 ml of the solvent is collected by distillation. The contents are cooled and the distillation head replaced by a gas inlet and exit tube connected to an alkali trap. Then 0.15 gm (0.002 mole) of Merck "Iron by Hydrogen" powder is added as a catalyst [51a-c], and dry chlorine gas is slowly bubbled into the reaction. In a few minutes, the reaction warms up, and the flask is surrounded with a 20°C water bath. The chlorine gas is bubbled in at such a rate that 18 gm (0.25 mole) is added over a 1-1½-hr period. After this time, the suspended disulfide should gradually disappear, and a clear, amber-red solution results. The flow of chlorine gas is stopped, the solution stirred for 1 hr, filtered through diatomaceous earth, the filtrate aspirated to remove excess chlorine, and then 400 ml of anhydrous ether is added. Within ½ hr, most of the product crystallizes by cooling the flask in an ice-salt-water bath for 3-4 hr. The product is filtered, washed with 100 ml of cold ether, and then dried to afford 70 gm (60%) of brilliant yellow needles, m.p. 95-95.5°C.
일반 설명
2,4-Dinitrobenzenesulfenyl chloride undergoes addition reactions with transannularly substituted cycloalkenes and norbornenes. 2,4-Dinitrobenzenesulfenyl chloride can convert allylic alcohols to dienes by 1,4-elimination.
Purification Methods
Crystallise the sulfenyl chloride from CCl4. [Beilstein 6 II 316.]
