A series of η4-acyloxycyclohexadiene–Fe(CO)3 complexes was prepared and fully characterized by spectroscopic methods including single crystal X-ray diffraction. For this purpose a new synthetic access to differently acylated 1,3- and 1,5-dienol–Fe(CO)3 complexes was developed. The enzymatically triggered CO release from these compounds was monitored (detection of CO through GC and/or by means of a
ACYLOXY- AND PHOSPHORYLOXY-BUTADIENE-FE(CO)3 COMPLEXES AS ENZYME-TRIGGERED CO-RELEASING MOLECULES
申请人:Schmalz Hans-Guenther
公开号:US20120202774A1
公开(公告)日:2012-08-09
The present invention provides acyloxy- and phosphoryloxy-butadiene-Fe(CO)
3
complexes which can deliver carbon monoxide to a physiological target, wherein release of carbon monoxide can be enzymatically-triggered. The present invention also provides for methods of manufacturing the enzymatically-triggered carbon monoxide releasing molecules and methods for their use.
direct conversion of alkenes to cyclic guanidines, we report that 1,3-dipolar cycloadditions of 2-amido-1,3-diamino allylic cations with alkenes provide a new method for direct cyclic guanidine annulation. Generated under oxidative conditions, the 2-amido-1,3-diaminoallyl cations react as 1,3-dipoles providing rapid access to 2-amino imidazolines through net (3 + 2) cycloadditions. The utility is demonstrated
Mn-salen catalyzed asymmetric oxidation of enol derivatives
作者:Tsutomu Fukuda、Tsutomu Katsuki
DOI:10.1016/0040-4039(96)00858-1
日期:1996.6
Mn-salen complex 1 was found to catalyze highly enantioselective oxidation of enol ethers with iodosylbenzene as a terminal oxidant giving the corresponding hydroxy acetals, when the reaction was carried out in an alcoholic solvent. The reactions in the usual solvents such as dichloromethane and acetonitrile showed irregular and lower enantioselectivity, partly due to racemization of the resulting