1-Naphthalene acetic acid was synthesized from 1-chloromethyl naphthalene byoctacarbonyl dicobalt under phase transfer catalytic conditions. Conversion was 99% andyield 83%. The effects of reaction temperatures, ratio...1-Naphthalene acetic acid was synthesized from 1-chloromethyl naphthalene byoctacarbonyl dicobalt under phase transfer catalytic conditions. Conversion was 99% andyield 83%. The effects of reaction temperatures, ratios of reactants, solvents, contents ofcatalyst and concentration of alkali on conversion have been investigated. Among the phasetransfer catalysts tested, the most effective was hexadecyltrimethylammonium chloride.展开更多
The reaction of dipropargyl phthalate C6H41,2(CO2CH2C2H)2 1 with octacarbonyldicobalt 2 resulted in the formation of red complex C6H41,2(CO2CH2C2H)2Co2(CO)62 3, in which each Co2(CO)6 group coordinates to one of t...The reaction of dipropargyl phthalate C6H41,2(CO2CH2C2H)2 1 with octacarbonyldicobalt 2 resulted in the formation of red complex C6H41,2(CO2CH2C2H)2Co2(CO)62 3, in which each Co2(CO)6 group coordinates to one of the two CC bonds of 1. Molecular structure of complex 3 was determined by single crystal Xray analyses. The crystal belongs to the monoclinic system, space group P21/a with the following crystallographic parameters: a=8.521(2), b=29.143(6), c=12.918(7) , = 100.12(3),V=3158(2) 3, Z=4, Mr=814.09, Dc=1712 g.cm-3, F(000)=1608, (MoK)=21.37 cm-1 and final R=0.044 for 3151 observations.展开更多
Recovery of Co 2(CO) 8 catalyst for the double carbonylation of benzyl chloride was studied. Co 2 (CO) 8 catalyst was recycled four times and the yield of product did not decrease. CoCl 2/Na 2S was used as the double ...Recovery of Co 2(CO) 8 catalyst for the double carbonylation of benzyl chloride was studied. Co 2 (CO) 8 catalyst was recycled four times and the yield of product did not decrease. CoCl 2/Na 2S was used as the double carbonylation catalyst precursor to replace Co 2(CO) 8, and a product yield of 51.5% can be obtained.展开更多
文摘1-Naphthalene acetic acid was synthesized from 1-chloromethyl naphthalene byoctacarbonyl dicobalt under phase transfer catalytic conditions. Conversion was 99% andyield 83%. The effects of reaction temperatures, ratios of reactants, solvents, contents ofcatalyst and concentration of alkali on conversion have been investigated. Among the phasetransfer catalysts tested, the most effective was hexadecyltrimethylammonium chloride.
文摘The reaction of dipropargyl phthalate C6H41,2(CO2CH2C2H)2 1 with octacarbonyldicobalt 2 resulted in the formation of red complex C6H41,2(CO2CH2C2H)2Co2(CO)62 3, in which each Co2(CO)6 group coordinates to one of the two CC bonds of 1. Molecular structure of complex 3 was determined by single crystal Xray analyses. The crystal belongs to the monoclinic system, space group P21/a with the following crystallographic parameters: a=8.521(2), b=29.143(6), c=12.918(7) , = 100.12(3),V=3158(2) 3, Z=4, Mr=814.09, Dc=1712 g.cm-3, F(000)=1608, (MoK)=21.37 cm-1 and final R=0.044 for 3151 observations.
文摘Recovery of Co 2(CO) 8 catalyst for the double carbonylation of benzyl chloride was studied. Co 2 (CO) 8 catalyst was recycled four times and the yield of product did not decrease. CoCl 2/Na 2S was used as the double carbonylation catalyst precursor to replace Co 2(CO) 8, and a product yield of 51.5% can be obtained.
