Abstract:
:A continuous flow process is presented that enables the efficient synthesis and derivatization of 1,2,4-thiadiazole heterocycles. Special attention was given to the safe handling of the versatile yet hazardous trichloromethane sulfenylchloride reagent including its in-line quenching in order to eliminate malodourous and corrosive by-products. Based on this flow method gram quantities of 5-chloro-3-phenyl-1,2,4-thiadiazole were safely prepared allowing for further elaboration of this valuable building block by reaction with different nitrogen-, sulfur- and oxygen-based nucleophiles. This synthetic approach was subsequently applied to generate a series of bromophenyl-5-chloro-1,2,4-thiadiazoles providing a valuable entry towards further structural diversification on this important heterocyclic scaffold.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Baumann M,Baxendale IRdoi
10.1016/j.bmc.2017.01.022subject
Has Abstractpub_date
2017-12-01 00:00:00pages
6218-6223issue
23eissn
0968-0896issn
1464-3391pii
S0968-0896(17)30090-1journal_volume
25pub_type
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