Zobrazeno 1 - 10
of 148
pro vyhledávání: '"iminium salt"'
Publikováno v:
Molbank, Vol 2023, Iss 1, p M1601 (2023)
A novel α,β-unsaturated iminium salt (3) incorporated into a rigid dibenzobarrelene backbone was synthesized by heating N-(anthracen-9-ylmethyl)-2,6-diisopropylaniline (2) and 3-phenyl-2-propynal in THF in the presence of excess amounts of magnesiu
Externí odkaz:
https://doaj.org/article/2534c1a3225e421abe74d38fc392167d
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 8, Pp 1168-1172 (2018)
In the cation of the title salt, C16H14Cl2N3S+·Br−, the central thiazolidine ring adopts an envelope conformation. The phenyl ring is disordered over two sites with a refined occupancy ratio of 0.541 (9):0.459 (9). In the crystal, C—H...Br and N
Externí odkaz:
https://doaj.org/article/3fa1029996ad4fd38e77441554a977c2
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 2981-2988 (2014)
Nucleophilic trapping of iminium salts generated via oxidative functionalisation of tertiary amines is well established with stabilised carbon nucleophiles. The few reports of organometallic additions have limited scope of substrate and organometalli
Externí odkaz:
https://doaj.org/article/a96bd4468021480aa3ae423e95b2a664
Akademický článek
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Publikováno v:
Crystals, Vol 3, Iss 1, Pp 248-256 (2013)
4-(Dimethylamino)benzaldehyde is alkylated at the N atom by dialkyl sulfates, MeI, or Me3O BF4. In contrast, ethylation by Et3O BF4 occurs selectively at the O atom yielding a quinoid iminium ion. 4-(Diethylamino)benzaldehyde is alkylated only at O b
Externí odkaz:
https://doaj.org/article/22d474234f2b4ba789bb0a4da5ef4b71
Publikováno v:
IUCrData, Vol 1, Iss 4, p x160619 (2016)
The title salt, C13H17N2O2+·BF4−, was prepared by the methylation of the imine with Meerwein salt in dichloromethane. The asymmetric unit comprises a 1,3,3-trimethyl-7-nitro-3,4-dihydroisoquinolinium cation and a tetrafluoroborate anion. The coord
Externí odkaz:
https://doaj.org/article/5cef8e56f0264f6fa29d9a8b74da3738
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications
In the crystal, the cations and anions stacked along the b-axis direction are linked by C—H⋯Br and N—H⋯Br hydrogen bonds, forming a three-dimensional network. In addition, weak C—H⋯π (ring) interactions, which only involve the minor di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::88941d37ed10a29d826fab64f228eca2
https://pubmed.ncbi.nlm.nih.gov/32148888
https://pubmed.ncbi.nlm.nih.gov/32148888
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 8, Pp 1168-1172 (2018)
In the cation of the title salt, C16H14Cl2N3S+·Br−, the central thiazolidine ring adopts an envelope conformation. The phenyl ring is disordered over two sites with a refined occupancy ratio of 0.541 (9):0.459 (9). In the crystal, C—H...Br and N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81ba94b86fdc4ab8f6969df9801d358b
https://avesis.erciyes.edu.tr/publication/details/f9ab10ef-b733-44ca-8a74-ecde6a912a24/oai
https://avesis.erciyes.edu.tr/publication/details/f9ab10ef-b733-44ca-8a74-ecde6a912a24/oai
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Crystals, Vol 3, Iss 1, Pp 248-256 (2013)
Crystals
Volume 3
Issue 1
Pages 248-256
Crystals
Volume 3
Issue 1
Pages 248-256
4-(Dimethylamino)benzaldehyde is alkylated at the N atom by dialkyl sulfates, MeI, or Me3O BF4. In contrast, ethylation by Et3O BF4 occurs selectively at the O atom yielding a quinoid iminium ion. 4-(Diethylamino)benzaldehyde is alkylated only at O b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78e161abe21498832fcca878619ca1b9
http://www.mdpi.com/2073-4352/3/1/248
http://www.mdpi.com/2073-4352/3/1/248