A sulfa-Michael/aldol cascade reaction of 1,4-dithiane-2,5-diol and α-aryl-β-nitroacrylate has been developed, which allows access to 2,5-dihydrothiophenes bearing a quaternary carbon center in moderate to good yields with high enantioselectivities.
Near-infrared absorbing aza-BODIPYs with the 1,7-Di-tert-butyl groups (tBuazaBDP) were successfully synthesized for the first time. By X-ray crystal analysis, S-tBuazaBDP is more twisted than the reported dye tetraphenyl aza-BODIPY. tBuazaBDPs...
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