59105-21-4Relevant articles and documents
Hydrazone–Cu-Catalyzed Suzuki–Miyaura-Type Reactions of Dibromoalkenes with Arylboronic Acids
Watanabe, Kohei,Mino, Takashi,Hatta, Chikako,Ishikawa, Eri,Yoshida, Yasushi,Sakamoto, Masami
, p. 3612 - 3619 (2017)
We have found that Suzuki–Miyaura-type reactions of dibromoalkenes with arylboronic acids using a hydrazone–Cu catalyst system proceeded smoothly under mild conditions to afford the corresponding internal alkyne derivatives in good yields. Furthermore, we also succeeded in the synthesis of o-allyloxy(ethynyl)benzene derivatives, which are known to be effective precursors of various heterocyclic compounds, through this reaction.
A carrier-free and recyclable protocol for the cross-coupling of terminal alkynes with arylboronic acids in H2O/TBAB
Tang, Bo-Xiao,Kuang, Ren-Yun,Wen, Ji-Wu,Huang,Zhang, Zhen-Xing,Shen, Yu-Jun,Chen, Jia-Ping,Wu, Wen-Ying
, p. 1975 - 1977 (2019/07/03)
A new and recyclable protocol was developed for Pd(OAc)2-catalyzed the cross-coupling reaction of terminal alkynes with arylboronic acids using environmentally friendly H2O/TBAB as reaction medium. A series of cross-coupling products containing internal acetylenic bond can be obtained with good selectivity and yield. The Pd(OAc)2/H2O/TBAB system was stable in the Sonogashira-type cross-coupling reaction and could be used at least three cycles without considerable decrease in catalytic performance. The results suggest that the unsupported and recyclable systems can be extended to the other realm of C&C bond formation in synthetic organic chemistry.
Gold-Catalyzed Dimerization of Diarylalkynes: Direct Access to Azulenes
Claus, Vanessa,Schukin, Michael,Harrer, Siegfried,Rudolph, Matthias,Rominger, Frank,Asiri, Abdullah M.,Xie, Jin,Hashmi, A. Stephen K.
supporting information, p. 12966 - 12970 (2018/09/25)
We have developed a simple gold-catalyzed procedure for the synthesis of substituted and modifiable azulenes. The azulenes are formed either by the dimerization of push–pull diarylalkynes bearing a fluorine atom in ortho or para position or by the dimeriz