Evidence map›Paper›PMID 30693769›Full record

ArticleJournal of the American Chemical Society2019

Secondary Orbital Interactions Enhance the Reactivity of Alkynes in Diels-Alder Cycloadditions.

Brian J Levandowski, Dennis Svatunek, Barbara Sohr, Hannes Mikula, K N Houk

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 27% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Insights into Tetrazine-Benzene Cycloadditions.The journal of physical chemistry. A · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Computational study of an oxetane 4Tetrahedron letters · 2023
    Article
  10. How Bases Catalyze Diels-Alder Reactions.Chemistry (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  11. Article
  12. Review
  13. Aromatic hydrocarbon belts.Nature chemistry · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Brian J LevandowskiDepartment of Chemistry and Biochemistry , University of California, Los Angeles , Los Angeles , California 90095 , United States.ORCID 0000-0002-8139-9417
Dennis SvatunekDepartment of Chemistry and Biochemistry , University of California, Los Angeles , Los Angeles , California 90095 , United States.
Barbara SohrInstitute of Applied Synthetic Chemistry , TU Wien , 1110 Vienna , Austria.
Hannes MikulaInstitute of Applied Synthetic Chemistry , TU Wien , 1110 Vienna , Austria.ORCID 0000-0002-9218-9722
K N HoukDepartment of Chemistry and Biochemistry , University of California, Los Angeles , Los Angeles , California 90095 , United States.ORCID 0000-0002-8387-5261
TU Wien · ATUniversity of California, Los Angeles · US

Funding

Bioorthogonal CycloadditionsR01GM109078 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HOUK, KENDALL N · 2015 to 2018
$1.1M
NIGMS NIH HHS R01 GM109078
6 · The paper itself

Abstract

We have investigated the inverse electron-demand Diels-Alder reactions of trans-cyclooctene (TCO) and endo-bicyclo[6.1.0]nonyne (BCN) with a 1,2,4,5-tetrazine, a cyclopentadienone, and an ortho-benzoquinone. Tetrazines react significantly faster with TCO compared to BCN because the highest occupied molecular orbital (HOMO) of TCO is significantly higher in energy than the HOMO of BCN and there is less distortion of the tetrazine. Despite the different HOMO energies, TCO and BCN have similar reactivities toward cyclopentadienones, while BCN is significantly more reactive than TCO in the cycloaddition with ortho-benzoquinone. We find that the higher reactivity of BCN compared to TCO with ortho-benzoquinone is due to secondary orbital interactions of the BCN HOMO-1 with the diene LUMO.

Indexed as

AlkynesCycloaddition ReactionKineticsModels, MolecularMolecular ConformationAlkynes

Identifiers

PMID30693769
PMCPMC8830044
OpenAlexW2912326362

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.