The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Polymer support oligonucleotide synthesis XVIII1.2): use of β-cyanoethyi-N,N-dialkylamino-/N-morpholino phosphoramidite of deoxynucleosides for the synthesis of DNA fragments simplifying deprotection and isolation of the final product
Open accessAbstract
Various 5'O-N-protected deoxynucleoside-3'-O-beta-cyanoethyl-N,N-dialkylamino-/N- morpholinophosphoramidites were prepared from beta-cyanoethyl monochlorophosphoramidites of N,N-dimethylamine, N,N-diisopropylamine and N-morpholine. These active deoxynucleoside phosphates have successfully been used for oligodeoxynucleotide synthesis on controlled pore glass as polymer support and are very suitable for automated DNA-synthesis due to their stability in solution. The intermediate dichloro-beta- cyanoethoxyphosphine can easily be prepared free from any PC1(3) contamination. The active monomers obtained from beta-cyanoethyl monochloro N,N- diisopropylaminophosphoramidites are favoured. Cleavage of the oligonucleotide chain from the polymer support, N-deacylation and deprotection of beta-cyanoethyl group from the phosphate triester moiety can be performed in one step with concentrated aqueous ammonia. Mixed oligodeoxynucleotides are characterized by the sequencing method of Maxam and Gilbert.
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
Cites
[57] Sequencing end-labeled DNA with base-specific chemical cleavages
Maxam, A. M., & Gilbert, W. (1980) · Methods in Enzymology · doi:10.1016/s0076-6879(80)65059-9 · Cited by 14,315
Synthesis of thymidine oligonucleotides by phosphite triester intermediates
Letsinger, R. L., & Lunsford, W. B. (1976) · Journal of the American Chemical Society · doi:10.1021/ja00428a045 · Cited by 283
Automated Synthesis of Gene Fragments
Alvarado-Urbina, G., Sathe, G. M., Liu, W.-C., Gillen, M. F., Duck, P. D., Bender, R., & Ogilvie, K. K. (1981) · Science · doi:10.1126/science.6169150 · Cited by 176
Nucleotide chemistry. XX. Phosphite coupling procedure for generating internucleotide links
Letsinger, R. L., Finnan, J. L., Heavner, G. A., & Lunsford, W. B. (1975) · Journal of the American Chemical Society · doi:10.1021/ja00844a090 · Cited by 157
Cited by
Carter, D. B., Deibel, M. R., Dunn, C. J., Tomich, C.-S. C., Laborde, A. L., Slightom, J. L., Berger, A. E., Bienkowski, M. J., Sun, F. F., McEwan, R. N., et al. (1990) · Nature · doi:10.1038/344633a0 · Cited by 601
Gallie, D. R., Sleat, D. E., Watts, J. W., Turner, P. C., & Wilson, T. M. A. (1987) · Nucleic Acids Research · doi:10.1093/nar/15.8.3257 · Cited by 408
Takeshita, M., Chang, C. N., Johnson, F., Will, S., & Grollman, A. P. (1987) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)61093-2 · Cited by 400
Requirement of pro-sequence for the production of active subtilisin E in Escherichia coli.
Ikemura, H., Takagi, H., & Inouye, M. (1987) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)47646-6 · Cited by 335
Metadata
- Authors
- Sinha, N. D., Biernat, J., McManus, J., & Köster, H.
- Venue
- Nucleic Acids Research
- Publisher
- Oxford University Press (OUP)
- Published
- 1984
- Volume
- 12
- Issue
- 11
- Pages
- 4539-4557
- ISSN
- 0305-1048 (ISSN-L)
- 1362-4962
- OpenAlex
- W1984286262
- Cited by
- 849
- References
- 4
- FWCI
- 12.63
- Type
- journal article
- Language
- en
- Open access
- green
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Polymer support oligonucleotide synthesis XVIII1.2): use of β-cyanoethyi-N,N-dialkylamino-/N-morpholino phosphoramidite of deoxynucleosides for the synthesis of DNA fragments simplifying deprotection and isolation of the final product. https://app.cochat.ai/papers/10.1093/nar/12.11.4539
- The paper
- Sinha, N. D., Biernat, J., McManus, J., & Köster, H. (1984). Polymer support oligonucleotide synthesis XVIII1.2): use of β-cyanoethyi-N,N-dialkylamino-/N-morpholino phosphoramidite of deoxynucleosides for the synthesis of DNA fragments simplifying deprotection and isolation of the final product. Nucleic Acids Research. https://doi.org/10.1093/nar/12.11.4539
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.