A one-pot approach to pyridyl isothiocyanates from amines.

A one-pot preparation of pyridyl isothiocyanates (ITCs) from their corresponding amines has been developed. This method involves aqueous iron(III) chloride-mediated desulfurization of a dithiocarbamate salt that is generated in situ by treatment of an amine with carbon disulfide in the present of DABCO or sodium hydride. The choice of base is of decisive importance for the formation of the dithiocarbamate salts.

[CT axial imaging of the iliolumbar ligament and its significance on locating lumbosacral vertebral segments].

Objective: To study the CT axial manifestations of iliolumbar ligament(ILL) and discusses its clinical effects on locating lumbosacral vertebral segments.

Methods: From May 2008 to March 2010, 706 adult patients diagnosed lumbar disc disease were performed with axial scans by single slice helical CT. Among the patients, 436 patients were male and 270 patients were female, ranging in age from 25 to 82 years, the median age was 44 years, 78 cases with lumbosacral transitional vertebrae (LSTV) were verified by X-radiography or fluoroscopy.