• 제목/요약/키워드: Cross-coupling reactions

검색결과 31건 처리시간 0.022초

팔라듐 촉매하 결합반응을 이용한 플루비프로펜의 간결한 합성 (Concise Synthesis of Flurbiprofen via Palladium-Catalyzed Cross-Coupling Reactions)

  • 한영택
    • 약학회지
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    • 제59권2호
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    • pp.66-69
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    • 2015
  • A concise synthesis of flurbiprofen, a member of the non-steroidal anti-inflammatory 2-arylpropionic acids, has been accomplished. The key feature of this synthesis involves successive palladium-catalyzed cross coupling reactions. In particular, a 2-arylacylate intermediate, which easily converted to the key 2-arylpropionic acid scaffold, was afforded by a versatile palladium-catalyzed cross coupling reaction between diazopropanate and bisphenylboronic acid. This synthetic procedure would facilitate synthesis of the flurbiprofen and anti-inflammatory 2-arylpropionic acid derivatives.

One-Pot Homo- and Cross-Coupling Reactions of Arenediazonium Tosylate Salts for the Synthesis of Biaryls and Polyaryls

  • Vajpayee, Vaishali;Song, Young-Ho;Ahn, Jeong-Soo;Chi, Ki-Whan
    • Bulletin of the Korean Chemical Society
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    • 제32권spc8호
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    • pp.2970-2972
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    • 2011
  • One-pot homo- and cross-coupling reactions of arenediazonium tosylate salts bearing a halogen group have been exploited for the synthesis of biaryls and polyaryls under mild conditions. $Pd(OAc)_2$ has proven to be an efficient catalyst for the successful dual transformation of diazonium salts into p-quaterphenyl (3).

Heterogeneous Suzuki Cross-Coupling Reaction Catalyzed by Magnetically Recyclable Nanocatalyst

  • Choi, Kwang-Hyun;Shokouhimehr, Mohammadreza;Sung, Yung-Eun
    • Bulletin of the Korean Chemical Society
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    • 제34권5호
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    • pp.1477-1480
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    • 2013
  • The Suzuki cross-coupling reactions proceeded in excellent yields when it was catalyzed by magnetically recyclable nanocatalyst. This nanocatalyst provided very high catalytic activity with low loading level (1 mol %), because the palladium nanoparticles were so small in size (~2 nm) and located on the surface of the nanocomposite. It was also easily recovered from the reaction mixture using a magnet and reused for six consecutive cycles.

Synthesis of Neopentyl Biphenylsulfonates Using the Suzuki-Miyaura Reaction

  • Cho, Chul-Hee;Kim, Chul-Bae;Sun, Myung-Chul;Park, Kwang-Yong
    • Bulletin of the Korean Chemical Society
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    • 제24권11호
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    • pp.1632-1636
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    • 2003
  • Palladium-catalyzed cross-coupling reactions of neopentyloxysulfonylphenyl bromides with arylboronic acids provided a variety of neopentyl biphenylsulfonates in good yields. 2-Bromo- and 4-bromobenzenesulfonates underwent the coupling reaction more rapidly than 3-bromobenzenesulfonate, while chlorobenzenesulfonate did not produce the coupling product under the standard reaction conditions.