Substituted Azetidine compounds, their preparation and use as medicaments
申请人:Cuberes Altisen Rosa
公开号:US20050187208A1
公开(公告)日:2005-08-25
The present invention relates to substituted Azetidine compounds of general formula (I), methods for their preparation, medicaments comprising these compounds as well as their use for the preparation of a medicament for the treatment of humans and animals.
Regioselective Bromination of Organic Substrates by Tetrabutylammonium Bromide Promoted by V<sub>2</sub>O<sub>5</sub>−H<sub>2</sub>O<sub>2</sub>: An Environmentally Favorable Synthetic Protocol
作者:Upasana Bora、Gopal Bose、Mihir K. Chaudhuri、Siddhartha S. Dhar、Rangam Gopinath、Abu T. Khan、Bhisma K. Patel
DOI:10.1021/ol9902935
日期:2000.2.1
[reaction: see text] Vanadium pentoxide very effectively promotes the bromination of organicsubstrates, including selective bromination of some aromatics, by tetrabutylammonium bromide in the presence of hydrogen peroxide; mild conditions, high selectivity, yield, and reaction rate, and redundancy of bromine and hydrobromic acid are some of the major advantages of the synthetic protocol.