Zobrazeno 1 - 10
of 66 480
pro vyhledávání: '"STEREOSELECTIVITY"'
Publikováno v:
SynOpen, Vol 08, Iss 04, Pp 223-231 (2024)
Externí odkaz:
https://doaj.org/article/ebfe13151e8740cf8f8b5d3f4d33172b
Publikováno v:
Results in Chemistry, Vol 12, Iss , Pp 101861- (2024)
This study reports the synthesis of a pyridinium salt achieved by heating 2-chloropyridine with 2-bromoacetamide in the absence of solvent. The synthesized salt exhibits a high reactivity towards nucleophilic substitution reactions with C-nucleophile
Externí odkaz:
https://doaj.org/article/14560bccf6c94200b2f9a19a8d047803
Autor:
Mario Orena, Samuele Rinaldi
Publikováno v:
Organics, Vol 5, Iss 3, Pp 163-204 (2024)
This review deals with the functionalization of double bonds carried out in the presence of a chiral catalyst exploiting the intramolecular attack to haliranium ions by nucleophilic nitrogen of amides or carbamates prepared from achiral aminoalkenes,
Externí odkaz:
https://doaj.org/article/5889eed977bc4108934cf2a6997d8b19
Autor:
Zhengjie He, William A. Donaldson
Publikováno v:
Molbank, Vol 2024, Iss 3, p M1850 (2024)
(1R,3R,5S,Z)-2-ethylidene-6,6-dimethyl-3-vinylbicyclo[3.1.1]heptane was prepared by hydrovinylation of nopadiene catalyzed by a cationic Ru complex. The structure was fully characterized by 1H- and 13C-NMR spectroscopy, including 2D-COSY and 2D-NOESY
Externí odkaz:
https://doaj.org/article/1d80f6417fd94f5284bc13ec3363ad40
Autor:
Chuanteng Ma, Wenxue Wang, Kaijin Zhang, Falei Zhang, Yimin Chang, Chunxiao Sun, Qian Che, Tianjiao Zhu, Guojian Zhang, Dehai Li
Publikováno v:
Advanced Science, Vol 11, Iss 26, Pp n/a-n/a (2024)
Abstract Dimeric indole‐containing diketopiperazines (di‐DKPs) are a diverse group of natural products produced through cytochrome P450‐catalyzed C–C or C–N coupling reactions. The regio‐ and stereoselectivity of these reactions plays a s
Externí odkaz:
https://doaj.org/article/bf2cc848f3284755ba99c1a63cedefab
Publikováno v:
Tetrahedron Chem, Vol 10, Iss , Pp 100064- (2024)
The hydrogen bond (HB) catalysed Diels-Alder (DA) reactions of acrolein with cyclopentadiene have been investigated within the Molecular Electron Density Theory (MEDT) at the ωB97X-D/6-311G(d,p) computational level. The formation of HBs increases th
Externí odkaz:
https://doaj.org/article/e8fe9762334b4be885a7300d62fb07d1
Autor:
Tongyan Ding, Zeyu Guo, Liangxing Fang, Wenying Guo, Yuxi Yang, Yafei Li, Xiarong Li, Limin He
Publikováno v:
Frontiers in Microbiology, Vol 15 (2024)
Drug combinations and repurposing have recently provided promising alternatives to cope with the increasingly severe issue of antibiotic resistance and depletion of natural drug molecular repertoires that undermine traditional antibacterial strategie
Externí odkaz:
https://doaj.org/article/cdfe550a4f024a66a4814c931d1df085
Autor:
Anna V. Orlova, Nelly N. Malysheva, Maria V. Panova, Nikita M. Podvalnyy, Michael G. Medvedev, Leonid O. Kononov
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 181-192 (2024)
The development of new methods for chemical glycosylation commonly includes comparison of various glycosyl donors. An attempted comparison of chemical properties of two sialic acid-based thioglycoside glycosyl donors, differing only in the substituen
Externí odkaz:
https://doaj.org/article/c32500c6733347fda41bd74d1b0d544e
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Akademický článek
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