898138-80-2Relevant academic research and scientific papers
(: Z)-Selective anti-Markovnikov or Markovnikov thiol-yne-click reactions of an internal alkyne by amide hydrogen bond control
Pramanik, Milan,Choudhuri, Khokan,Chakraborty, Subhayan,Ghosh, Arindam,Mal, Prasenjit
, p. 2991 - 2994 (2020)
Herein, we show exclusive control of stereo and regioselective thiol-yne click (TYC) reactions of internal alkynes via amide hydrogen bond control. By exploiting appropriate hydrogen bonding interactions like N-H?S, N-H?N and C-H?O, either (Z)-selective anti-Markovnikov or Markovnikov products could be obtained for an internal alkyne, exclusively.
One-pot synthesis of a white-light emissive bichromophore operated by aggregation-induced dual emission (AIDE) and partial energy transfer
Biesen, Lukas,Deni?en, Melanie,Hannen, Ricarda,Hoffmann, Katrin,Itskalov, Dana,Müller, Thomas J. J.,Nirmalananthan-Budau, Nithiya,Reiss, Guido J.,Resch-Genger, Ute
supporting information, p. 7407 - 7410 (2020/07/15)
Merocyanine-triarylamine bichromophores are readily synthesized by sequentially Pd-catalyzed insertion-alkynylation-Michael-Suzuki four-component reactions. White-light emissive systems form upon aggregation in 1 : 99 and 0.1 : 99.9 vol percent CH2Cl2-cyclohexane mixtures, ascribed to aggregation-induced dual emission (AIDE) in combination with partial energy transfer between both chromophore units as supported by spectroscopic studies.
Access to 3-(2-Oxoalkyl)-azaspiro[4.5]trienones via Acid-Triggered Oxidative Cascade Reaction through Alkenyl Peroxide Radical Intermediate
Wang, Chang-Sheng,Roisnel, Thierry,Dixneuf, Pierre H.,Soulé, Jean-Fran?ois
supporting information, p. 445 - 450 (2019/01/04)
Azaspiro[4.5]trienones bearing ketone side chains at the 3-position are prepared from N-alkyl-arylpropiolamides and ketones via oxidative 1,2-difunctionalization of alkynes. The cascade sequence starts with the generation of alkenyl peroxide intermediates
Copper-Catalyzed Domino Synthesis of Benzo[4,5]imidazo[1,2-a]pyrimidin-4(10H)-ones using Cyanamide as a Building Block
Lou, Zhenbang,Wu, Xudong,Yang, Haijun,Zhu, Changjin,Fu, Hua
, p. 3961 - 3968 (2016/01/25)
An efficient and practical copper-catalyzed domino synthesis of benzo[4,5]imidazo[1,2-a]pyrimidin-4(10H)-ones has been developed. The protocol uses N-(2-halophenyl)-3-alkylpropiolamides and cyanamide as the starting materials, inexpensive copper(I) iodide and pipecolinic acid as the catalyst and ligand, and the corresponding products were obtained in moderate to good yields.
Palladium-Catalyzed Tandem Approach to 3-(Diarylmethylene)oxindoles Using Microwave Irradiation
Park, Sunhwa,Shin, Kye Jung,Seo, Jae Hong
supporting information, p. 2296 - 2300 (2015/09/28)
We developed a rapid and efficient microwave-assisted tandem reaction for the synthesis of 3-(diarylmethylene)oxindoles. Three palladium-catalyzed reactions (Sonogashira, Heck, and Suzuki-Miyaura reactions) were combined under microwave irradiation conditions to produce 3-(diarylmethylene)oxindoles from simple propiolamides, aryl iodides, and arylboronic acids. The addition of Ag3PO4 enhanced the yield and stereoselectivity of the tandem reaction significantly.
Synthesis of 3-(diarylmethylene)oxindoles via a palladium-catalyzed one-pot reaction: Sonogashira-heck-suzuki-miyaura combined reaction
Dong, Guang Ri,Park, Sunhwa,Lee, Dahye,Shin, Kye Jung,Seo, Jae Hong
supporting information, p. 1993 - 1997 (2013/09/24)
A novel one-pot reaction for the synthesis of 3-(diarylmethylene)oxindoles is described. The reaction involves the successive combination of three palladium-catalyzed reactions (Sonogashira, Heck, and Suzuki-Miyaura reactions). This method enables the rapid synthesis of various 3-(diarylmethylene)oxindoles from simple propiolamides. The addition of silver salts dramatically enhanced the E/Z stereoselectivity of the reaction. Georg Thieme Verlag Stuttgart, New York.
