Ke, Chaoqi published the artcileOrganocatalytic asymmetric synthesis of benzothiazolopyrimidines via a [4+2] cycloaddition of azlactones with 2-benzothiazolimines, Formula: C7H5ClN2S, the publication is Organic Chemistry Frontiers (2021), 8(20), 5705-5709, database is CAplus.
An easily available L-proline-derived guanidine-amide were found to be efficient at catalyzing a [4+2] cycloaddition of azlactones with 2-benzothiazolimines by affording various benzothiazolopyrimidines bearing adjacent tertiary and quaternary stereogenic centers in excellent yields at 2 mol% loading. The diastereoisomers of the main adducts differed from those in a previous bifunctional organocatalytic system.
Organic Chemistry Frontiers published new progress about 95-24-9. 95-24-9 belongs to thiazole, auxiliary class Organic Pigment, name is 6-Chlorobenzothiazol-2-ylamine, and the molecular formula is C7H5ClN2S, Formula: C7H5ClN2S.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica