Now showing items 61-66 of 66
Total synthesis of mitomycins
The total synthesis of mitomycins via isomitomycin A is described. Key reactions are a Michael-type coupling reaction between chalcone (94)* and 5-ethylthio-2-trimethylsiloxyfuran, followed by an azido-olefin cyclization. ...
Purification and studies of two butanol(ethanol) dehydrogenases and the effects of rifampicin and chloramphenicol on other enzymes important in the production of butyrate and butanol in Clostridium acetobutylicum ATCC 824
Two NADH dependent butanol(ethanol) dehydrogenases from Clostridium acetobutylicum have been purified to near homogeneity. Either of these two dehydrogenases could be part of the pathway for the production of butanola and ...
Jet-cooled radical spectroscopy using a color center laser
Jet-cooled radical spectroscopy has been developed for its potential application to high resolution infrared spectroscopic studies of large radicals. In general, radicals containing more than three atoms heavier than ...
Structural evolution of the central External Betic Cordillera, southern Spain
A new tectonic subdivision of the central External Betic Cordillera is proposed based on previous stratigraphic studies, interpretation of seismic reflection profiles and balanced cross-sections. All available surface and ...
Repetitively pulsed (rp) and continuous wave (cw) hydrogen fluoride/deuterium fluoride (HF/DF) chemical laser interactions with in vitro human corneal and cardiovascular tissue have been studied to understand tissue ablation ...
Tectonic evolution of the south-central Caribbean based on geochemical data
Northern Venezuela consists of seven east-west trending tectonostratigraphic belts which are from north to south: Dutch and Venezuelan islands (DVI), Venezuelan platform, Cordillera de la Costa-Margarita terrane (CCMT), ...