The DOI matches its Crossref record.
Novel, Very Strong, Uncharged Auxiliary Bases; Design and Synthesis of Monomeric and Polymer‐Bound Triaminoiminophosphorane Bases of Broadly Varied Steric Demand
Abstract
The synthesis and properties of a number of very strong iminophosphorane bases up to an extremely high level of steric hindrance are described. They cover a range of ca. 4 p K units in basicity and a range of more than 11 orders of magnitude in their rates of methylation with methyl iodide. Most of the systems are readily prepared in up to molar quantities, conveniently recovered from their salts and are of high chemical and thermal stability. Crystal structures were determined in order to parametrize a force field, which is utilized in molecular modeling studies offering a rationalization of the observed differences in steric hindrance and basicity. Depending on the degree of steric protection of the basic center, these novel bases are proposed as unprecedented, versatile auxiliary bases in E2 eliminations and in reactions involving deprotonation in the presence of more or less strong electrophiles.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Zhao, J., Pahovnik, D., Gnanou, Y., & Hadjichristidis, N. (2014) · Polym. Chem. · doi:10.1039/c4py00429a · Cited by 79
Progress in Catalytic Ring-Opening Polymerization of Biobased Lactones
Al-Shok, L., Haddleton, D. M., & Adams, F. (2022) · Advances in Polymer Science · doi:10.1007/12_2021_111 · Cited by 10
Metadata
- Authors
- Schwesinger, R., Willaredt, J., Schlemper, H., Keller, M., Schmitt, D., & Fritz, H.
- Venue
- Chemische Berichte
- Publisher
- Wiley
- Published
- 1994-12
- Volume
- 127
- Issue
- 12
- Pages
- 2435-2454
- ISSN
- 0009-2940 (ISSN-L)
- OpenAlex
- W2951912712
- Cited by
- 256
- References
- 0
- FWCI
- 6.78
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
