Quantification of nonstatistical dynamics in an intramolecular Diels-Alder cyclization without trajectory computation.
Quantification of nonstatistical dynamics in an intramolecular Diels-Alder cyclization without trajectory computation.
复制标题
分子内 Diels-Alder 环化中非统计动力学的量化,无需轨迹计算
DOI:
10.1021/jo500035b
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
M. Schmittel
中科院分区:
文献类型:
--
作者:
D. Samanta;A. Rana;M. Schmittel
Experimental and computational (DFT) investigations reveal that enyne–allenes with an aryl group as probe at the allene terminus follow a dynamic non-IRC Diels–Alder cyclization pathway. Starting from two separate C2–C6(Schmittel) transition states (TS), two distinct reaction paths originate that share a common diradical intermediate, however, without mixing! Because the momentum of the initial TS is transmitted into product formation, we suggest a simple protocol without trajectory computations to estimate the fraction of molecules that follow nonstatistical dynamics: It was calculated from the partitioning at the TSs, as derived from DFT computations, and the experimental ratio. The thus-determined percentage of dynamically reacting molecules only slightly depends on the depth of the intermediate well but rather on ΔΔG⧧of the initial and the follow-up transition states.
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影响因子:
15
作者:
Thomas, Jacqueline B.;Waas, Jack R.;Harmata, Michael;Singleton, Daniel A.
通讯作者:
Singleton, Daniel A.
影响因子:
--
作者:
Shuhei Itoh;H. Yamataka
通讯作者:
H. Yamataka
影响因子:
15
作者:
Glowacki, David R.;Liang, C. H.;Pilling, Michael J.
通讯作者:
Pilling, Michael J.
DOI:
10.1021/jo202424n
发表时间:
2012-02-03
期刊:
The Journal of organic chemistry
影响因子:
--
作者:
Lan Y;Danheiser RL;Houk KN
通讯作者:
Houk KN
影响因子:
2
作者:
M. Schmittel;M. Maywald;M. Strittmatter
通讯作者:
M. Schmittel;M. Maywald;M. Strittmatter