该研究以“Visible-light-driven synthesis of N-heteroaromatic carboxylic acids by thiolate-catalysed carboxylation of C(sp²)–H bonds using CO₂”为题近日发表于《Nature Synthesis》。文章链接: https://www.nature.com/articles/s44160-023-00465-6。四川大学化学学院为第一单位,叶剑衡研究员、蓝宇教授...
doi:10.1002/recl.19921110409H.OrganonC.OrganonJ.OrganonOttenheijmOrganonWileyRecueil Des Travaux Chimiques Des Pays Bas
Synthesis of higher carboxylic acids using CO2 and H2 is of great importance, because CO2 is an attractive renewable C1 resource and H2 is a cheap and clean reductant. Herein we report a route to produce higher carboxylic acids via reaction of ethers with CO2 and H2. We show that the reac...
Catalytic carboxylation of C–H bonds using CO2 is a sustainable and economic strategy to produce valuable carboxylic acids. However, this process presents challenges due to the low reactivity of C–H bonds and difficulties in controlling regioselectivity. Although progress has been made in this field...
摘要: The equimolar reactions of carboxylic acids and alcohols with 1-methyl-2-halopyridinium salts in the presence of two equimolar amounts of tri--butylamine afforded the corresponding carboxylic esters in good yields.DOI: 10.1246/cl.1975.1045 被引量: 205 ...
A New Synthesis of 1Amino2,2-dialkylcyclopropanecarboxylic Acids from β-Chloroimines KIMPE DE N ET AL: " A NEW SYNTHESIS OF 1-AMINO-2,2-DIALKYLCYCLOPROPANECARBOXYLIC ACIDS FROM -CHLOROIMINES " SYNLETT, THIEME VERLAG, STUTTGART, DE, ... N. De Kimpe,P Sulmon - 《Synlett》 被引量: 53...
But you didn’t want the methyl group nor its replacement, the carboxylic acid group. That is, you wish to carry out decarboxylation to yield the product now numbered 1,3-dinitrobenzene. Decarboxylation The actual decarboxylation process is relatively simple. Heating in the presence of a catalys...
get the lowest energy or most stable conformation. For carboxylic acids and esters, two stable conformers (anti and syn) exist with the syn being the most stable. Shown below are two comparisons for these conformations of ethyl acetate and acetic acid calculated at the B3LYP/6-31G(d) level...
Methylesters of polyenoic fatty acids (FAE) with up to six double bonds can be transformed to polyhydroxy derivatives by treatment with OsO 4. Under low energy electron impact the trimethylsilyloxy (O-TMS) derivatives of these polyenoic ... B Schmitz,H Egge - 《Chemistry & Physics of Lipid...
Fig. 1: Catalytic cross-electrophile coupling between carboxylic acids and organohalides. a The abundant feedstock chemicals in synthetic lab. b Direct cross-electrophile coupling of acid and organohalides. c Key challenge: C–O versus C–C formation. Full size image In recent years, nickel-catal...