Palladium-Catalyzed Hydroxy Group Directed Regioselective Mono-arylation of 2-Hydroxybiphenyls to 2-Hydroxy to ortho -Terphenyls

2019 ◽  
Vol 2019 (14) ◽  
pp. 2472-2480 ◽  
Author(s):  
Devarapalli Ravi Kumar ◽  
Alavala Gopi Krishna Reddy ◽  
Gedu Satyanarayana
Tetrahedron ◽  
1985 ◽  
Vol 41 (24) ◽  
pp. 5747-5754 ◽  
Author(s):  
Takashi Takahashi ◽  
Atsushi Ootake ◽  
Jiro Tsuji ◽  
Kazuo Tachibana

1966 ◽  
Vol 44 (17) ◽  
pp. 2023-2029 ◽  
Author(s):  
George R. Pettit ◽  
Arun K. Das Gupta ◽  
Robert L. Smith

A practical synthetic route to 3β-hydroxy-17β-amino-5α-androstane (III) was developed and the configuration of the amine substituent established by proton magnetic resonance studies. Condensing amine III with carbobenzoxy-L-proline by means of Woodward's reagent K led to proline derivative IVa. Steroidal peptide Vb was readily prepared by first removing the protecting group from amide IVa by palladium-catalyzed hydrogenolysis and then repeating the peptide-forming and hydrogenation steps. Protection of the 3β-hydroxy group proved to be unnecessary, and the presently reported approach to steroidal peptides proved to be reliable and useful.


2020 ◽  
Vol 7 (19) ◽  
pp. 2938-2943
Author(s):  
Yeojin Kim ◽  
Kwang Ho Song ◽  
Sunwoo Lee

Aryl sulfonyl hydrazide reacted with aryl iodide in the presence of CO to give the corresponding S-aryl thioesters.


2020 ◽  
Vol 7 (6) ◽  
pp. 885-889 ◽  
Author(s):  
Xinxin Qi ◽  
Zhi-Peng Bao ◽  
Xiao-Feng Wu

A palladium-catalyzed carbonylative transformation of aryl iodides and sulfonyl chlorides to thioesters has been studied.


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