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Base-catalyzed decarboxylation of mandelylthiamin: direct formation of bicarbonate as an alternative to formation of CO2.
- G. Howe, M. Bielecki, R. Kluger
- Chemistry, Medicine
- Journal of the American Chemical Society
- 14 December 2012
The decarboxylation of mandelylthiamin is subject to general base catalysis (β = 0.26), an outcome that is inconsistent with the expected dissociative transition state in which CO(2) forms along with… Expand
Lithium-stabilized nucleophilic addition of thiamin to a ketone provides an efficient route to mandelylthiamin, a critical pre-decarboxylation intermediate.
Mandelylthiamin (MTh) is an accurate model of the covalent intermediate derived from the condensation of thiamin diphosphate and benzoylformate in benzoylformate decarboxylase. The properties and… Expand
Frenemies in the Media: Maritime Sovereignty and Propaganda Regarding the South China Sea
When Indonesia struggles to fight illegal fishing in 2016, Indonesian Navy has caught several Chinese fishing boats in its 200-mile exclusive economic zone (EEZ) off the Natuna Island. Although, many… Expand
A new locality of Polemonium coeruleum (Polemoniaceae) in the Łośna river valley near Małogoszcz (Wyżyna Małopolska Upland).
- M. Bielecki
- Environmental Science
Lessons Learned from the Reactivity of Mandelylthiamin and Derivatives
- M. Bielecki
- 1 November 2017
Mandelylthiamin (MTh) is an accurate model of the pre-decarboxylation intermediate formed on benzoylformate decarboxylase (BFDC). In solution, it decarboxylates to the Breslow intermediate 10 times… Expand
The European History Book From the Beginning Until Today
In the middle of the 1980s Europe was still living in the postwar period. The division of the continent appeared to be permanently sealed, and only a few prophesied a swift change. The empire that… Expand
The Need for an Alternative to Radicals as the Cause of Fragmentation of a Thiamin-Derived Breslow Intermediate.
Mandelylthiamin (1) is a conjugate of benzoylformate and thiamin that loses CO2 to form the classic Breslow intermediate (2), whose expected fate is formation of the thiamin conjugate of benzaldehyde… Expand
Comparative study of pyrolytic behavior of the biomass wastes originating in the Ukraine and potential application of such biomass. Part 1. Analysis of the course of pyrolysis process and the…
Abstract The course of pyrolysis process of 5 different biomass wastes including agricultural waste [soft wood (SW), sunflower husks (SH), corn stalks (CS), walnut shells (WN), and wheat straw (WS)]… Expand
Plants with known antagonistic properties against pests: how they influence non-target free-living soil fauna?
The aim of the study was to investigate the effect of three plant species with known antagonistic properties against pests on selected free-living species of soil fauna. The direct effects of aqueous… Expand
Axonopathy precedes cell death in ocular damage mediated by blast exposure
Traumatic brain injuries (TBI) of varied types are common across all populations and can cause visual problems. For military personnel in combat settings, injuries from blast exposures (bTBI) are… Expand