Ion-neutral complexes as intermediates in the decompositions of C5H10O2.cntdot.+ isomers
作者:David J. McAdoo、Charles E. Hudson、Mark Skyiepal、Ellen Broido、Lawrence L. Griffin
DOI:10.1021/ja00259a012
日期:1987.12
Les acides valerique methyl-3 butyrique ionises et l'isomere enolique de l'acetate d'isopropyle ionise passent en partie via des intermediaires communs avant leur decomposition en CH 3 ĊHC(OH) 2 + et CH 3 C(OH) 2 +
Les acides valeriquemethyl-3 butyrique ionises et l'isomere enolique de l'acetate d'isopropyle ionise passent en partie via des intermediaires commons avant leurresolution en CH 3 ĊHC(OH) 2 + et CH 3 C(OH) 2 +
Nucleophilic capture of 2-bicyclo[2.1.1]hexyl cations
and CO reduction reactions (CO2RR and CORR) is desirable, however, mechanistic understanding that enables C-C coupling beyond the self-coupling of CO to valuable products is lacking. In this work, we elucidate the the C-C coupling mechanism between CO and acetaldehyde, a reactiveintermediate in both CO2RR and CORR, via combined isotopic labeling and in-situ spectroscopic investigations. CO attacks the
通过电化学 CO2 和 CO 还原反应(CO2RR 和 CORR)生产有价值的多碳 (C3+) 产品是可取的,但是,缺乏使 CC 耦合超越 CO 与有价值产品的自耦合的机制理解。在这项工作中,我们通过结合同位素标记和原位光谱研究阐明了 CO 和乙醛之间的 CC 耦合机制,乙醛是 CO2RR 和 CORR 的反应中间体。CO 在偶联过程中攻击乙醛的羰基碳,CO 中的碳最终位于生成的 1-丙醇的羟甲基 (-CH2OH) 中。当 CORR 与添加的乙醛一起进行时,CO 和乙醛之间确实会发生偶联,
Unimolecular dissociations of the [2-hexanone]+˙ metastable ion
AbstractThe metastable molecular ion of 2‐hexanone loses a methyl radical mainly (∼80%) from positions C(4) and C(6), in equal proportions, as indicated by 13C labelling. The necessary skeletal rearrangement of the butyl chain is interpreted in terms of a 1,2‐[enol‐olefin] +˙ shift. The results and the mechanisms concerning the minor eliminations of C2H4, C2H5˙, C3H5˙ and C3H6 neutrals are also discussed.