Evidence map›Paper›PMID 35943036›Full record

ArticleAngewandte Chemie (International ed. in English)2022

Exploiting Coordination Effects for the Regioselective Zincation of Diazines Using TMPZnX⋅LiX (X=Cl, Br).

Alexander Kremsmair, Alisa S Sunagatullina, Leonie J Bole, Pasquale Mastropierro, Simon Graßl, Henrik R Wilke, Edouard Godineau, Eva Hevia, Paul Knochel

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Calcium Alkynyl(hydrido)zincates.Organometallics · 2026
    Article
  3. Deuteration of Six-Membered N-Heteroarenes: Chemistry and Applications.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025
    Review
  4. Review
  5. Direct C-H Hydroxylation ofJournal of the American Chemical Society · 2024
    Article
  6. Review
  7. Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Alexander KremsmairDepartment Chemie & Biochemie, Ludwig Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
Alisa S SunagatullinaDepartment Chemie & Biochemie, Ludwig Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
Leonie J BoleDepartment für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland.
Pasquale MastropierroDepartment für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland.
Simon GraßlDepartment Chemie & Biochemie, Ludwig Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
Henrik R WilkeDepartment Chemie & Biochemie, Ludwig Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
Edouard GodineauForschung & Entwicklung Stein, Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, Switzerland.
Eva HeviaDepartment für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland.
Paul KnochelDepartment Chemie & Biochemie, Ludwig Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.ORCID http://orcid.org/0000-0001-7913-4332

Funding

Deutsche ForschungsgemeinschaftSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 188573
6 · The paper itself

Abstract

A new method for regioselective zincations of challenging N-heterocyclic substrates such as pyrimidines and pyridazine was reported using bimetallic bases TMPZnX⋅LiX (TMP=2,2,6,6-tetramethylpiperidyl; X=Cl, Br). Reactions occurred under mild conditions (25-70 °C, using 1.75 equivalents of base without additives), furnishing 2-zincated pyrimidines and 3-zincated pyridazine, which were then trapped with a variety of electrophiles. Contrasting with other s-block metalating systems, which lack selectivity in their reactions even when operating at low temperatures, these mixed Li/Zn bases enabled unprecedented regioselectivities that cannot be replicated by either LiTMP nor Zn(TMP)

Indexed as

DiazinesMetalationRegioselectivitySalt EffectsStructural Elucidation

Identifiers

PMID35943036
PMCPMC9826189

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.