Conformational study of anticholinesterase carbamates in the furylbenzene series by1H and13C NMR spectroscopy
摘要:
AbstractThe structural analysis of carbamates derived from 2‐(α‐furyl)benzaldoximes and 2‐(α‐furyl)benzyl alcohols was carried out by 1H and 13C NMR spectroscopy. The conjugative and steric effects of alkyl substituents introduced on the benzene rings were found to modify the relative orientation of the aromatic and furan rings. The existence of a close relationship between the stereochemistry of the studied compounds and their anticholinesterase activity has been proposed.
Synthesis of Biaryls by Intramolecular Radical Transfer in Phosphinates
摘要:
Phosphinates 20a-35a give biaryls 20b-35b on heating with stannanes in the presence of AIBN. The process involves a radical ipso substitution on the migrating aryl ring.
Synthesis of Substituted Biarylmethanol via Ferrocenyloxime Palladacycles Catalyzed Suzuki Reaction of Chlorophenylmethanol in Water
作者:Hong-Mei Li、Ai-Qing Feng、Xin-Hua Lou
DOI:10.5012/bkcs.2014.35.8.2551
日期:2014.8.20
4-(hydroxymethyl)phenylboronic acid for the synthesis of substituted biarylmethanols in water. However, substrates are limited to the aryl bromides and activated aryl chlorides. To date, there is no report that investigates the Suzuki reaction of chlorophenylmethanol in water. As a continuation of our interest in the synthesis of biarylmethanols, we have prepared a newphosphine adduct of palladacycle 2 from the
Disclosed is a method for producing an optically active alcohol including reacting a titanium compound, an aromatic magnesium compound and a carbonyl compound in the presence of an optically active biphenol compound having a predetermined structure and an ether compound having a predetermined structure.
Disclosed is a method for producing an optically active alcohol including reacting a titanium compound, an aromatic magnesium compound and a carbonyl compound in the presence of an optically active biphenol compound having a predetermined structure and an ether compound having a predetermined structure.
作者:David A. Elsley、Donald MacLeod、John A. Miller、Peter Quayle、Gareth M. Davies
DOI:10.1016/s0040-4039(00)74144-x
日期:1992.1
The synthesis of a variety of spiroketal-containing systems is outlined, utilising a palladium catalysed coupling reaction in the pivotal carbon-carbon bond forming step.