Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Reimer–Tiemann reaction"'
Autor:
Shuangquan Zang, Kai Li, sup> 郑州大学化学与分子工程学院, 郑州 ,, sup> 河南工业大学化学化工与环境学院, 郑州 ,, Huijie Lu, sup> 香港科技大学化学系, 中国 香港,, Yuanyuan Li, Benzhong Tang
Publikováno v:
University Chemistry. 35:53-58
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75e9c74d59c23592a5799d77fbb7efd0
https://doi.org/10.3866/pku.dxhx201904010
https://doi.org/10.3866/pku.dxhx201904010
Publikováno v:
Makara Seri Sains, Vol 06, Iss 2, Pp 70-77 (2002)
Reimer-Tiemann reaction belongs to the group of the electrophylic substitution reaction (SE), and principally, this reaction consists of three steps reactions, namely: 1. formation of dichlorocarbene from chloroform by action of base (i.e. KOH), 2. r
Externí odkaz:
https://doaj.org/article/9b60ac16b6df40cfb5f8e208bfbe9fc2
Autor:
R.W. Fischer
Publikováno v:
Catalysis from A to Z.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c519fed52803524c95db739769e520fe
https://doi.org/10.1002/9783527809080.cataz14261
https://doi.org/10.1002/9783527809080.cataz14261
Autor:
Yi Wang, Zhi-Xiang Yu
Publikováno v:
Organicbiomolecular chemistry. 15(35)
A quantum chemical study of [1,j] sigmatropic proton shifts in polyenyl anions and related conjugated systems has been performed. We found that the Woodward-Hoffmann rules can be applied to understand the stereochemical outcome of these sigmatropic r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d27346b4622b7395c54f39182bdfe251
https://pubmed.ncbi.nlm.nih.gov/28832696
https://pubmed.ncbi.nlm.nih.gov/28832696
Publikováno v:
Synthesis. 46:3041-3046
The first concise and efficient total synthesis of (±)-cassumunin C has been accomplished with a longest linear sequence of seven steps in 11.7% yield. The key steps involve aromatic propargylation and stereoselective reduction of alkynylphenol to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dae139fc1d15c6e5d2ea60e87d0f138d
https://doi.org/10.1055/s-0034-1378557
https://doi.org/10.1055/s-0034-1378557
Publikováno v:
Synthetic Communications. 41:3678-3682
Improved yields of aldehydes from the Reimer–Tiemann reaction of coumarin and two of its derivatives, namely 7-methylcoumarin and 3,4-benzocoumarin, are obtained by carrying the reaction in a two-step procedure. Using crown ether as phase transfer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba17e0a907c0ac166445c495f7e94b79
https://doi.org/10.1080/00397911.2010.519847
https://doi.org/10.1080/00397911.2010.519847
Autor:
Chinna Bathula, Lokesh A. Shastri, Samundeeswari L. Shastri, Manohar V. Kulkarni, Mahantesha Basanagouda
Publikováno v:
Synthetic Communications. 41:476-484
A rapid and easy route for the N-formylation of secondary amines using chloroform and sodium ethoxide via dichlorocarbene by the Riemer–Tiemann reaction with excellent yield is reported.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f12053f06062598830f13bd986524e0b
https://doi.org/10.1080/00397910903576644
https://doi.org/10.1080/00397910903576644
Publikováno v:
Catalysis Letters. 145:712-714
Reimer–Tiemann reaction of guaiacol and chloroform was carried out in the presence of various zeolites. Vanillin was afforded as major product in a high selectivity. Zeolites played an important role of shape-selective catalysts in the reactions. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e5017156122abaff329d62ebeee4c7f
https://doi.org/10.1007/s10562-014-1456-5
https://doi.org/10.1007/s10562-014-1456-5
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 349:012036
A 4-hydroxy-3-methylchalcone has been synthesized from 4-hydroxy-3-methylbenzaldehyde as the Reimer-Tiemann reaction product. This research consists of three steps involve synthesize of 4-hydroxy-3-methylbenzaldehyde from ortho-cresol, synthesize of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9832c032da6057594c7c9ecc19aa305
https://doi.org/10.1088/1757-899x/349/1/012036
https://doi.org/10.1088/1757-899x/349/1/012036
Publikováno v:
Chemical Physics Letters. 318:270-275
Normal Reimer–Tiemann rearrangement (reaction of pyrrole ring and dichlorocarbene in basic media to yield pyrrole-2-carboxaldehyde) has been theoretically characterized at HF/6-311++G∗∗, MP2//6-31++G∗∗ and B3LYP//6-31++G∗∗ computing lev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7be85a01a3c58691fa3017caca64e8b
https://doi.org/10.1016/s0009-2614(00)00005-1
https://doi.org/10.1016/s0009-2614(00)00005-1