Chemistry (Weinheim an der Bergstrasse, Germany), 13(13), 3701-3706 (2007-01-20)
Reactions of salicylaldehydes with ethyl buta-2,3-dienoate or penta-3,4-dien-2-one catalyzed by a catalytic amount of potassium carbonate produce the corresponding 2 H-chromene products in moderate to good yields under mild conditions. A plausible reaction mechanism is discussed in the light of
Highly efficient organosuperbase-catalyzed Mannich-type reactions of sulfonylimidates with imines: successful use of aliphatic imines as substrates and a unique reaction mechanism.
Junya Nakano et al.
Angewandte Chemie (International ed. in English), 51(38), 9525-9529 (2012-08-30)
The Journal of organic chemistry, 77(3), 1585-1591 (2012-01-19)
DBU-promoted cyclization of ortho-(3-hydroxy-1-alkynyl)benzamide is presented, providing an efficient method for the synthesis of trans-3,4-dihydroisoquinolin-1(2H)-ones and (E)-4-(1-alkenyl)isoquinolin-1(2H)-ones under mild conditions.
Angewandte Chemie (International ed. in English), 48(51), 9600-9606 (2009-12-01)
A century ago Wilhelm Ostwald received the Nobel Prize for Chemistry. Although Ostwald was never significantly involved with the phenomenon of chirality, one of his discoveries, Ostwald ripening, is thought to be involved in a recently discovered method in which
A pH-controlled fluorescence switch based on a core-substituted naphthalenediimide compound (NDI-DBU) was constructed. The novel pentacyclic compound (NDI-DBU) was derived from naphthalenediimide (NDI) and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in only one synthetic operation, catalysized by CuI.
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