Lithium dialkylcuprates undergo conjugate addition to thiochromones to afford 2-alkylthiochroman-4-ones in good yields. This approach provide an efficient and general synthetic approach to privileged sulfur-containing structural motifs and valuable precursors for many pharmaceuticals. starting from common substrates-thiochromones. Good yields of 2-alkyl-substituted thiochroman-4-ones ... https://www.diegojavierfares.com/hot-deal-Cobra-Fly-XL-Graphite-Mens-Right-Hand-Package-Set-Regular-Fly-XL-save-more/