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Bicyclic thiadiazoles I: 2-(2-thienyl)-5-phenylthiazolo[2,3-b]-1,3,4-thiadiazole

✍ Scribed by Man M. Kochhar; Mohammad Salahi-Asbahi; Byron B. Williams

Publisher: John Wiley and Sons
Year: 1973
Tongue: English
Weight: 216 KB
Volume: 62
Category: Article
ISSN: 0022-3549
DOI: 10.1002/jps.2600620239

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✦ Synopsis

hydrates could be air milled, the author proceeded to pnpare suspensions with air-milled hydrate to see if crystal growth still oe curted. Work was done with I-hydrate, because at that time development work on 11 had been discontinued. A 2.5% suspension of air-milled I-hydrate was made (Table ) and observed for 2 years by microscopic examination and particle-size analysis. No evidetice for crystal growth was observed.

This case history shows that suspensions are dynamic systems and that it is important to establish which forms are present at equilibrium. It shows that careful work is needed to identify these forms and prove that they can be processed to specifications prior to suspension formulation work. In addition, this report shows that satisfactory suspensions can be made with these equilibrium form.

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