A -D suffix exists for administrative purposes only. All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.
Cinchona alkaloid-derived chiral bifunctional thiourea organocatalysts were synthesized and applied in the Michael addition between nitromethane and chalcones with high ee and chemical yields.
Chemistry, an Asian journal, 7(4), 771-777 (2012-02-10)
Through the cleavage of the C-C bond, the first catalytic tandem conjugate addition-elimination reaction of Morita-Baylis-Hillman C adducts has been presented. Various S(N)2'-like C-, S-, and P-allylic compounds could be obtained with exclusive E configuration in good to excellent yields.
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