Stereochemistry of Dichlorocarbene Addition to Alkenes: A Collaborative, Discovery-Based Experiment for the Organic Chemistry Laboratory
Stereochemistry of Dichlorocarbene Addition to Alkenes: A Collaborative, Discovery-Based Experiment for the Organic Chemistry Laboratory
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二氯卡宾与烯烃加成的立体化学:有机化学实验室的基于发现的协作实验
DOI:
10.1021/acs.jchemed.8b00758
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发表时间:
2019
影响因子:
3
通讯作者:
Thamattoor, Dasan M.
中科院分区:
文献类型:
--
作者:
Thu Le, Nguyen Nhat;Klinkerch, Edmund J.;Thamattoor, Dasan M.
A multifaceted experiment, accessible to students either in an introductory organic chemistry course or in a more advanced laboratory setting, is described for investigating the addition of dichlorocarbene toE- andZ-β-methylstyrenes. The innovative exercise, which integrates elements of synthesis, mechanisms, instrumental analysis, computational chemistry, and collaboration, provides students with an opportunity to learn important laboratory skills while highlighting key concepts covered in class. In particular, the coupling constants from1H NMR spectroscopy are used to diagnose the stereochemistry of addition, and integral ratios are evaluated to determine percent conversion of the starting alkenes into dichlorocyclopropanes. The experimental observations are correlated with results from calculations of the singlet–triplet energy gap in the carbene.
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DOI:
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发表时间:
1959
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作者:
R. Woodworth;P. Skell
通讯作者:
P. Skell
DOI:
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发表时间:
1976
期刊:
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发表时间:
1991
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作者:
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W. C. Yip
DOI:
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发表时间:
2006
期刊:
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作者:
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通讯作者:
M. Cooper
DOI:
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发表时间:
1973
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作者:
S. Goh
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S. Goh