Evidence map›Paper›PMID 31739665›Full record

ArticleJournal of the American Chemical Society2019

Site-Selective and Stereoselective

Jicheng Wu, Xiaolei Li, Xiaotian Qi, Xiyan Duan, Weston L Cracraft, Ilia A Guzei, Peng Liu, Weiping Tang

Open access · greenAbstract 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. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

9 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Dynamic Kinetic Stereoselective Glycosylation via RhAngewandte Chemie (International ed. in English) · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. 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

8 authors at 2 institutions in 1 country.

Jicheng WuSchool of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States.
Xiaolei LiSchool of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States.
Xiaotian QiDepartment of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States.
Xiyan DuanSchool of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States.ORCID 0000-0003-4882-0430
Weston L CracraftDepartment of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States.
Ilia A GuzeiDepartment of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States.ORCID 0000-0003-1976-7386
Peng LiuDepartment of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States.ORCID 0000-0002-8188-632X
Weiping TangSchool of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States.ORCID 0000-0002-0039-3196
University of Wisconsin–Madison · USUniversity of Pittsburgh · US

Funding

Develop Catalytic Methods to Streamline the Assembly of OligosaccharidesU01GM125290 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI TANG, WEIPING · 2017 to 2020
$2.2M
"Develop an Efficient and General Strategy for the Synthesis of Challenging Glycosides"R21GM126370 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI TANG, WEIPING · 2018 to 2019
$408k
NIGMS NIH HHS R21 GM126370NIGMS NIH HHS U01 GM125290
6 · The paper itself

Abstract

Carbohydrates are synthetically challenging molecules with vital biological roles in all living systems. Selective synthesis and functionalization of carbohydrates provide tremendous opportunities to improve our understanding on the biological functions of this fundamentally important class of molecules. However, selective functionalization of seemingly identical hydroxyl groups in carbohydrates remains a long-standing challenge in chemical synthesis. We herein describe a practical and predictable method for the site-selective and stereoselective alkylation of carbohydrate hydroxyl groups via Rh(II)-catalyzed insertion of metal carbenoid intermediates. This represents one of the mildest alkylation methods for the systematic modification of carbohydrates. Density functional theory (DFT) calculations suggest that the site selectivity is determined in the Rh(II)-carbenoid insertion step, which prefers insertion into hydroxyl groups with an adjacent axial substituent. The subsequent intramolecular enolate protonation determines the unexpected high stereoselectivity. The most prevalent

Indexed as

AlkenesAlkylationCatalysisDensity Functional TheoryGlycolsModels, MolecularMolecular ConformationRhodiumStereoisomerismAlkenesGlycolsRhodium

Identifiers

PMID31739665
PMCPMC6920555
OpenAlexW2991127970

What OpenQuestion holds

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LicenceTDM
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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.