First Examples of Enantioselective Palladium-Catalyzed Thiocarbonylation of Prochiral 1,3-Conjugated Dienes with Thiols and Carbon Monoxide:  Efficient Synthesis of Optically Active β,γ-Unsaturated Thiol Esters

2001 ◽  
Vol 66 (19) ◽  
pp. 6229-6233 ◽  
Author(s):  
Wen-Jing Xiao ◽  
Howard Alper
2001 ◽  
Vol 79 (5-6) ◽  
pp. 587-592 ◽  
Author(s):  
Christophe Moineau ◽  
Giuseppe Mele ◽  
Howard Alper

The copolymerization of carbon monoxide with different olefins bearing carbamate and amide functionalities was effected using [Pd(CH3CN)4](BF4)2 as the catalyst and (R,R)-Me-DUPHOS (2:1 (v/v) MeNO2–MeOH or CH2Cl2 as the solvent). The products constitute a new class of functionalized copolymers, and were found to be optically active with a mixture of 1,4-ketone and spiroketal repeating units in the backbone. The influence of different parameters on the copolymerization of methyl N-(3-butenyl)carbamate with carbon monoxide was examined.Key words: copolymerization, carbon monoxide, olefins bearing carbamate and amide functionalities.


Synthesis ◽  
2004 ◽  
Vol 2004 (09) ◽  
pp. 1325-1330 ◽  
Author(s):  
Tadakatsu Mandai ◽  
Tetsuta Oshitari ◽  
Rumiko Akagi

2005 ◽  
Vol 83 (6-7) ◽  
pp. 826-831 ◽  
Author(s):  
Hong Cao ◽  
Wen-Jing Xiao

Rapid palladium-catalyzed carbonylative cyclization reactions of 2-iodophenol with various alkynes have been carried out by the use of commercially available molybdenum hexacarbonyl as a convenient and solid carbon monoxide source. The reactions were conducted at 160 °C for 30 min with microwave heating in the presence of DIEA and DMAP in 1,4-dioxane, and afford the corresponding chromen-2-one derivatives in good yields.Key words: microwave, palladium, carbonylation, 2-iodophenol, chromen-2-one.


1991 ◽  
Vol 56 (3) ◽  
pp. 663-672 ◽  
Author(s):  
Curtis B. Anderson ◽  
Rade Marković

The influence of temperature and carbon monoxide pressure on the course of oxidative carbonylation reaction of 1,5-cyclooctadiene in the presence of the palladium(II) salts as a catalyst, was investigated.


1998 ◽  
Vol 39 (20) ◽  
pp. 3189-3192 ◽  
Author(s):  
Hidetoshi Tokuyama ◽  
Satoshi Yokoshima ◽  
Tohru Yamashita ◽  
Tohru Fukuyama

Synthesis ◽  
2021 ◽  
Author(s):  
Zheng-Yang Gu ◽  
Yang Wu ◽  
Feng Jin ◽  
Bao Xiaoguang ◽  
Ji-Bao Xia

An atom- and step-economic intermolecular multi-component palladium-catalyzed C–H amidation of alkenes with carbon monoxide and organic azides has been developed for the synthesis of alkenyl amides. The reaction proceeds efficiently without an ortho-directing group on the alkene substrates. Nontoxic dinitrogen is generated as the sole by-product. Computational studies and control experiments have revealed that the reaction takes place via an unexpected mechanism by tandem palladium catalysis.


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