Conversion of a-Amino Acids into Nitriles by Oxidative Decarboxylation with Trichloroisocyanuric AcidHiegel, Gene ALewis, Justin CBae, Jason W
Experimental conditions: column, Waters Delta Pak C18 (10 nm, 5 μm); eluent, 2 mmol L−1 sodium octanesulfonate, 35 mmol L−1 sodium tartrate, 5% acetronitrile adjusted to pH 3.65 with NaOH; flow rate, 0.8 mL min−1; detection, 500 nm after post-column addition of 0.5 mL min...
The global demand for lactic acid is projected to be 1.96 × 106 tons by 2020, while the demand for PLA is projected at 1.21 × 106 tons [7]. Lactic acid can be produced either by chemical or biological synthesis. Chemical synthesis is usually performed by the hydrolysis of lactonitrile ...
Any of a large number of compounds that are found in living cells, contain carbon, oxygen, hydrogen, and nitrogen, and join together to form proteins. ♦ About 20 amino acids are needed by animal cells to produce proteins, but only about half, callednonessential amino acids, can be produ...
add 3-methyl pyridine, air and ammonia into the fluidized bed reactor and catalyze the reaction at 290～360℃,V2O5 to produce nicotinonitrile; then hydrolyze in sodium hydroxide aqueous solution at 160℃ to produce sodium nicotinate; finally, add hydrochloric acid to acidify, creating nicotinic ac...
energeticallyuphill conversion of dicyclopentadiene to cyclopentadiene (Cp) and further downstream processes such as Diels-Alder synthesis of a norbonadiene ... Dinda,Milan,Maiti,... - 《Current Organic Synthesis》 被引量: 0发表: 2016年 Asymmetric Diels-Alder reactions of chiral (E)-2-cyanocinnam...
When combined with iron(II), ligands of this ilk can promote alkene dihydroxylation and allylic oxidation reactions akin to those mediated by non-heme iron oxidase enzymes (NHIOs)1–9; in combination with cobalt(III) or iron(III), they may catalyse conversion of nitriles to primary amide ...
Reactions of the SZ sample activated at 600 °C in the pentane isomerization at 50 °C showed 33% conversion of pentane after 30 h, which agrees with other reports on the activity of SZ on light paraffin isomerization. Nonetheless, the SZ superacidity was discussed based on the acidity and...
During the base hydrolysis process, the nitrile to amide conversion is relatively fast. The bottleneck appears to be the slow conversion from the amide to carboxylic acid [35]. The hydroxide (OH−) attacks the carbonyl carbon of the benzamide to give a tetrahedral intermediate. Since NH2− ...
In the gas phase ammonia oxidation process, add 3-methyl pyridine, air and ammonia into the fluidized bed reactor and catalyze the reaction at 290～360℃,V2O5 to produce nicotinonitrile; then hydrolyze in sodium hydroxide aqueous solution at 160℃ to produce sodium nicotinate; finally, add hydro...