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pro vyhledávání: '"Acylal"'
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Publikováno v:
شیمی کاربردی روز, Vol 10, Iss 37, Pp 55-62 (2016)
Bronsted acidic ionic liquid, [Et3N–SO3H]Cl, catalyzed the reaction of acetic anhydride with aryl aldehydes under solvent-free condition. Various 1,1-diacetates are obtained using 15 mol% of triethylamine-bonded sulfonic acid in satisfactory to exc
Externí odkaz:
https://doaj.org/article/dbb4149c736441bb9cd3be54deabbd6c
Publikováno v:
Bioorganic chemistry. 93
Chemoselective, mild and convenient protocol for the hydrolysis of the synthetically relevant acylals via promiscuous enzyme-catalyzed hydrolysis has been developed. It has been shown that promiscuous activity of the used hydrolases dominates their n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::146adcb2e4a68c926a05b43cc5288d27
https://pubmed.ncbi.nlm.nih.gov/30826011
https://pubmed.ncbi.nlm.nih.gov/30826011
Publikováno v:
New Journal of Chemistry. 40:687-693
Tungstosulfonic acid (TSA) has been found to be an efficient solid acid catalyst for the protection of aldehydic carbonyl groups by geminal diacetate (acylal) formation following the nucleophilic addition of acetic anhydride under neat conditions as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6785d95de78cab63570e878f47b84d3
https://doi.org/10.1039/c5nj02697k
https://doi.org/10.1039/c5nj02697k
Publikováno v:
Chinese Chemical Letters. 26:81-84
A facile, rapid and solvent-free method for the conversion of acids and dihalomethane to the corresponding methylene diesters (acylals) using microwave as activators or assistor, is reported. This method is particularly powerful for the diesterificat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcc327b6183678a09f3685eda33f8023
https://doi.org/10.1016/j.cclet.2014.11.001
https://doi.org/10.1016/j.cclet.2014.11.001
Autor:
Davood Setamdideh
Publikováno v:
Journal of the Mexican Chemical Society. 58
The acylalation of structurally different aldehydes has been performed by Zn(BH4)2/Ac2O/DOWEX(R)50WX4 as new system within 1-5 min at room temperature with excellent yields of the products (92-97%).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d16febdec7a6f27c4f18bccf57016be8
https://doi.org/10.29356/jmcs.v58i2.183
https://doi.org/10.29356/jmcs.v58i2.183
Autor:
Stephen T. Hilton, Blanka R. Szulc, Bruno M. A. Borges, Alessandra Monaco, Zenobia X. Rao, Marta Barniol-Xicota, Moussa Sehailia
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 23(20)
An intramolecular acylal cyclisation (IAC) approach to the synthesis of a range of bicyclic heterocycles is reported. As an example of the utility of the IAC reaction, the methodology was applied in a protecting-group-free five-step total synthesis o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed6ea423e8d6680212c20dd484db6a49
https://pubmed.ncbi.nlm.nih.gov/28217842
https://pubmed.ncbi.nlm.nih.gov/28217842
Publikováno v:
Chinese Chemical Letters. 25:1630-1634
MWCNTs-C-PO3H2 has been used as an efficient, heterogeneous and reusable nanocatalyst for synthesis of acylals from aldehydes under solvent-free conditions at room temperature. A wide range of aldehydes was studied and corresponding products were obt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d48ac7c76f1db1614493e28be8b528db
https://doi.org/10.1016/j.cclet.2014.07.005
https://doi.org/10.1016/j.cclet.2014.07.005
Publikováno v:
Tetrahedron Letters. 55:5373-5376
Phospho sulfonic acid (PSA) acts as a highly effective and reusable catalyst for the chemo-selective protection of aldehydes with acetic anhydride under solvent-free conditions. The desirable features of this new catalytic methodology include its sus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcb0799e62a4dc10c2eb32a1d549eb1f
https://doi.org/10.1016/j.tetlet.2014.07.115
https://doi.org/10.1016/j.tetlet.2014.07.115
Autor:
Parisa Azizi Asl, Davood Setamdideh
Publikováno v:
Journal of the Chinese Chemical Society. 61:940-944
Reductive-acylalation of aldehydes has been carried out by NaBH4/Ac2O/DOWEX(R)50WX4 system. A variety of aldehydes (1 mmol) have been reacted with Ac2O (0.5 mL) and NaBH4 (1 mmol) in the presence of DOWEX(R)50WX4 (0.5 g) for the preparation of their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2590a0a9fc5084c5e847a579011c4d2a
https://doi.org/10.1002/jccs.201400049
https://doi.org/10.1002/jccs.201400049