Evidence map›Paper›PMID 34122856›Full record

ArticleChemical science2020

Facile access to diverse all-carbon quaternary center containing spirobicycles by exploring a tandem Castro-Stephens coupling/acyloxy shift/cyclization/semipinacol rearrangement sequence.

Ye Zhang, Tian-Lu Zheng, Fu Cheng, Kun-Long Dai, Kun Zhang, Ai-Jun Ma, Fu-Min Zhang, Xiao-Ming Zhang, Shao-Hua Wang, Yong-Qiang Tu

Abstract read
In one paragraph

Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. 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

10 authors.

Ye ZhangState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.
Tian-Lu ZhengState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.
Fu ChengState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.
Kun-Long DaiState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.
Kun ZhangSchool of Biotechnology and Health Science, Wuyi University Jiangmen 529020 P. R. China.
Ai-Jun MaSchool of Biotechnology and Health Science, Wuyi University Jiangmen 529020 P. R. China.
Fu-Min ZhangState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.ORCID https://orcid.org/0000-0001-5578-1148
Xiao-Ming ZhangState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.ORCID https://orcid.org/0000-0002-9294-9672
Shao-Hua WangState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.ORCID https://orcid.org/0000-0002-4347-8245
Yong-Qiang TuState Key Laboratory of Applied Organic Chemistry, School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China tuyq@lzu.edu.cn wangshh@lzu.edu.cn.ORCID https://orcid.org/0000-0002-9784-4052

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Efficient combination of two or more reactions into a practically useful purification free sequence is of great significance for the achievement of structural complexity and diversity, and an important approach for the development of new synthetic strategies that are industrially step-economic and environmentally friendly. In this work, a facile and efficient method for the construction of highly functionalized spirocyclo[4.5]decane derivatives containing a synthetically challenging quaternary carbon center has been successfully developed through the realization of a tandem Castro-Stephens coupling/1,3-acyloxy shift/cyclization/semipinacol rearrangement sequence. Thus a series of multi-substituted spirocyclo[4.5]decane and functionalized cyclohexane skeletons with a phenyl-substituted quaternary carbon center have been constructed using this method as illustrated by 24 examples in moderate to good yields. The major advantages of this method over the known strategies are better transformation efficiency (four consecutive transformations in one tandem reaction), product complexity and diversity. As a support of its potential application, a quick construction of the key tetracyclic diterpene skeleton of waihoensene has been achieved.

Identifiers

PMID34122856
PMCPMC8152660

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.