Akụkọ ụlọ ọrụ

Methyl p-toluenesulfonate chemical Njirimara

2022-06-22
Methyl 4-toluenesulfonate, nke a na-akpọkwa methyl p-toluenesulfonate (methylp-toluenesulfonate), bụ ihe dị n'etiti kemịkalụ kemịkalụ dị mkpa, nke a na-ejikarị eme ihe na-esiji esiji na organic njikọ, dị ka nkwadebe nke methylation akụrụngwa. Methyl 4-toluenesulfonic acid nwekwara ike iji dị ka a nhọrọ methylation reagent maka organic njikọ, eji na mmepụta nke e ji esiji ákwà na organic njikọ, na-eji maka nkwadebe nke methylation akụrụngwa, nhọrọ methylation reagent na-akpali akpali organic njikọ.


kristal ọcha. Ebe mgbaze 28-29â, ebe esi esi 292â, 146-147â (1.2kPa), njupụta ikwu 1.231 (20/4â). Soluble na ethanol, ether, benzene, na-adịghị edozi na mmiri. Hygroscopic.


Site na mmeghachi omume nke p-toluene sulfonyl chloride na methanol. Gwakọta p-toluene sulfonyl chloride na methanol, jiri nwayọọ nwayọọ tinye 25% sodium hydroxide ngwọta, okpomọkụ na-achịkwa n'okpuru 25â, na pH 9, kwụsị ịgbakwụnye alkali, Chemicalbook nọgidere na-akpali 2h, hapụ otu abalị. A na-ewere ihe ndị na-eme ka oyi akwa nke dị n'okpuru ala, a na-eji benzene wepụ elu elu, a na-ejikọta ihe ngwọta nke amịpụtara na nke dị n'okpuru ala mgbe a na-emegharị benzene, na-asa ya na mmiri na 5% potassium carbonate solution n'aka nke ya, na ngwaahịa a rụchara na-enweta site na oghere distillation. mgbe ihicha.