You could be based in a university, combining chemical research with teaching; in a pharmaceutical company, working on developing and trialing new drugs, helping to ensure national healthcare provision keeps pace with new discoveries , Reference of 26978-64-3, 26978-64-3, Name is 4-Hydroxybutane-1-sulfonic acid, molecular formula is C4H10O4S, belongs to thiazines compound. In a document, author is Sun, Jing, introduce the new discover.
Selective construction of indeno[1,2-b]phenothiazine and indeno[2,1-c]phenothiazine via tandem annulation reaction
AcOH promoted annulation reaction of 2-arylideneindane-1,3-diones with methyl 2-(benzo[b][1,4] thiazin-3-ylidene)acetate in refluxing ethanol afforded pentacyclic tetrahydroindeno [1,2-b]phenothiazine in satisfactory yields and with high diastereoselectivity according to the unexpected tandem annulation process. When the above reaction was carried out in refluxing acetic acid, isomeric dihydroindeno [1,2-b]phenothiazines and dihydroindeno [2,l-c]phenothiazines were obtained in comparable yields according to alternate tandem annulation process. (c) 2018 Elsevier Ltd. All rights reserved.
The proportionality constant is the rate constant for the particular unimolecular reaction. You can get involved in discussing the latest developments in this exciting area about 26978-64-3. Reference of 26978-64-3.
Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem