• 제목/요약/키워드: Sulfonyl chloride

검색결과 32건 처리시간 0.017초

불소계(弗素系) 계면활성제(界面活性劑)에 관한 연구(硏究)(제(第)1보(報));계면활성(界面活性) 함불소계(含弗素系) N-장쇄(長鎖)아실 크라운 에테르유(類)의 합성(合成) (Studies on the Perfluoro Alkyl Surfactants(I);Synthesis of Surface Active N-Perfluoroacylmono Aza Crown Ethers)

  • 손주환;남기대;이승열;소부영
    • 한국응용과학기술학회지
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    • 제7권1호
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    • pp.49-62
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    • 1990
  • In order to synthesize N,N-di-(polyoxyethylene) perfluoroacyl amines and the surface active monoperfluoroacyl aza crown ethers, it is performed as follow. Six of N,N-di(polyoxyethylene) perfluoro acyl amines were synthesized from perfluoroalkanoic acids with ethanol followed by oxyethylation with triethylene glycol mono chloride or tetra ethylene glycol mono chloride and six of N-perfluor acyl monoaza crown ethers by cyclization of corresponding N,N-di(polyoxy ethylene} perfluoro acyl amines with p-toluene suflonic chloride-NaOH/dioxane, p-toluene sulfonyl chloride KOH/dioxane and benzene sulfonic chloride-KOH/dioxane systems.

Poly(N,N'-Dichloro-N-ethyl-benzene-1,3-disulfonamide) and N,N,N',N'-Tetrachlorobenzene-1,3-disulfonamide as Efficient Reagents to Direct Oxidative Conversion of Thiols and Disulfide to Sulfonyl Chlorides

  • Veisi, Hojat;Ghorbani-Vaghei, Ramin;Mahmoodi, Jafar
    • Bulletin of the Korean Chemical Society
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    • 제32권10호
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    • pp.3692-3695
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    • 2011
  • Poly(N,N'-Dichloro-N-ethyl-benzene-1,3-disulfonamide) (PCBS) and N,N,N',N'-Tetrachlorobenzene-1,3-disulfonamide (TCBDA) were found to be a mild and efficient reagent for the direct oxidative conversion of sulfur compounds to the corresponding arenesulfonyl chlorides in good to excellent yields through the oxidative chlorination. The overall process is simple, practical, and it provides convenient access to a variety of aryl or heteroarylsulfonyl chlorides. The mild reaction conditions and the broad substrate scope render this method attractive, and complementary to existing syntheses of aryl or heteroarylsulfonyl chlorides.

Reaction Intermediate of Organic Sulfur Compound Ⅰ. Elimination Mechanism of Sulfonyl Chloride

  • Tae-Seop Uhn;Jong-Pal Lee;Hyun-Seok Park;Hyung-Tae Kim;Zoon-Ha Ryu
    • Bulletin of the Korean Chemical Society
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    • 제11권1호
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    • pp.60-64
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    • 1990
  • The reactions of alkanesulfonyl chlorides with pyridines in the presence of various solvents have been studied by means of kinetic method. Alkanesulfonyl chlorides bearing ${\alpha}$-hydrogen with the normal attack of pyridine is found to be at the ${\alpha}$-hydrogen with elimination to form the sulfene intermediate evidently. From the mass spectra by the reaction of ethanesulfonyl chloride with 3-picoline in the presence of methanol-$d_1$, it has shown that the reaction has a witness favorable to the slulfene intermediate.

새로운 술폰아미드계의 촉매의 합성 (Synthesis of Indoline tri-isopropyl benzene sulfonamide as a potential new asymmetric catalyst)

  • 윤인권;김환철
    • 자연과학논문집
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    • 제7권
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    • pp.47-51
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    • 1995
  • 입체 이성질체를 합성하는 방법으로 최근에 알려진 입체선택성 촉매를 이용한 유기반응을 연구 하기 위하여 비천연 아미노산인 인돌린-2- 카르본산으로 부터카르본산그룹의 환원,2차아민기의 보호화,메실화,아지도치환,환원에 의한 아민기로의 전환, 술폰화, 보호기제거등의 총 5단계의 합성과정을 거쳐 목적하는 술폰아미드를 합성하였다. 각 생성물은 관 크로마토그래피에 의하여 분리 정제후 핵자기공명스펙트럼($^1H,^13C $ NMR) 적외선 스펙트럼 등에 의하여 구조를 확인 하였다.

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염화나프탈렌술포닐과 피리딘의 친핵성 치환반응에 대한 용매효과 (Solvent Effect on the Nucleophilic Substitution Reaction of Naphthalene Sulfonyl Chloride with Pyridine)

  • 이익춘;엄태섭;성대동;염걸
    • 대한화학회지
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    • 제27권1호
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    • pp.1-8
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    • 1983
  • 단일양성자성용매(메탄올, 에탄올, 1-프로판올)와 단일반양성자성용매(아세톤, 아세토니트릴, 아세토페논, 니트로벤젠) 및 이성분혼합용매계(메탄올-아세톤, 메탄올-아세토니트릴, 메탄올-벤젠)에서 염화나프탈렌술포닐과 피리딘의 친핵성치환반응에 미치는 용매효과를 전기전도도법으로 연구하였다. 단일양성자성용매의 반응속도상수는 유전상수가 큰 쪽에서 크게 관측되었고 반양성자성 용매의 반응속도상수는 유전상수가 큰 쪽에서 작게 나타났다. 아세토니트릴은 유전상수가 큰 반양성자성용매인데도 다른 반양성자성용매들보다 속도상수가 크게 관측되었다. 본 친핵성치환반응에서 용매효과는 ${\pi}^{\ast}$가 중요하고 염소이온의 이탈효과보다 수소결합형성이 전이상태를 안정화시키는데 기여함을 알 수 있었다.

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