Time-on-stream behavior of sequential reactions

1989 ◽  
Vol 28 (12) ◽  
pp. 1743-1748 ◽  
Author(s):  
Ming Chow ◽  
Gary B. McVicker
Keyword(s):  
Sequential Reactions

Carbon Chain Growth by Sequential Reactions of CO and CO2 with a Transition Metal Carbonyl Complex

2018 ◽  
Author(s):  
Richard Kong ◽  
Mark Crimmin
Keyword(s):  
Transition Metal ◽  
Metal Carbonyl ◽  
Carbon Chain ◽  
Chain Growth ◽  
Carbonyl Complex ◽  
Fischer Tropsch ◽  
Carbon Chains ◽  
Sequential Coupling ◽  
Energy Economy ◽  
Sequential Reactions

<i>The formation of carbon chains by the coupling of COx (X = 1 or 2) units on transition metals is a fundamental step relevant to Fischer-Tropsch catalysis. Fischer-Tropsch catalysis produces energy dense liquid hydrocarbons from synthesis gas (CO and H2) and has been a mainstay of the energy economy since its discovery nearly a century ago. Despite detailed studies aimed at elucidating the steps of catalysis, experimental evidence for chain growth (Cn to Cn+1 ; n > 2) from the reaction of CO with metal complexes is unprecedented. In this paper, we show that carbon chains can be grown from sequential reactions of CO or CO2 with a transition metal carbonyl complex. By exploiting the cooperative effect of transition and main group metals, we document the first example of chain propagation from sequential coupling of CO units (C1 to C3 to C4), along with the first example of incorporation of CO2 into the growing carbon chain.</i><br>

Chemoselective Sequential Reactions for the Synthesis of 12H-Benzo[a]xanthenes and Dihydro-1H-naphtho[1,2-e][1,3]oxazines

Synlett ◽  
2015 ◽  
Vol 26 (08) ◽  
pp. 1031-1038 ◽  
Author(s):  
Aziz Shahrisa ◽  
Reza Teimuri-Mofrad ◽  
Mahdi Gholamhosseini-Nazari
Keyword(s):  
Solvent Free ◽  
Fast Green ◽  
Solvent Free Conditions ◽  
Sequential Reactions

Novel sequential Betti–Ullmann and Betti–C–H activation reactions for the synthesis of 12H-benzo[a]xanthenes and dihydro-1H-naphtho[1,2-e][1,3]oxazines have been developed. Depending on the used conditions selective Ullmann-type arylation or α-C-H aryloxylation of 2-bromophenyl alkylaminonaphthols occurred. A simple, fast, green, and high-yielding method for the synthesis of aminonaphthols catalyzed by bismuth(III) chloride under solvent-free conditions is reported.

Fluorescent properties of coumarins with dual functions constructed by two sequential reactions

2012 ◽  
Vol 53 (44) ◽  
pp. 5916-5919 ◽  
Author(s):  
Tomoya Hirano ◽  
Haruko Kubo ◽  
Takuya Shiraishi ◽  
Kenichi Hiromoto ◽  
Takashi Fujiwara ◽  
...  
Keyword(s):  
Fluorescent Properties ◽  
Dual Functions ◽  
Sequential Reactions
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