24 research outputs found
Rayleigh lidar observations of temperature over Tsukuba: winter thermal structure and comparison studies
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A Tandem Ring‐Opening/Michael Addition/Ring‐Closure Sequence for the Regiospecific Synthesis of 5‐Hydroxy‐4,5‐dihydroisoxazoles
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Conjugate addition of curcumins to chalcones and azodicarboxylates
No full textCascade double Michael reaction of curcumins with chalcones in the presence of Cs2CO3 in CH3CN provided highly functionalized cyclohexanones in moderate to good yields (35-77%) and good to excellent diastereoselectivities (81:19 to 95:05). Similar reaction of curcumins with azodicarboxylates in the presence of DMAP in CH3CN stopped at the single Michael addition stage affording novel hydrazinodicarboxylates of curcumins in good to excellent yields (65-85%). (C) 2013 Elsevier Ltd. All rights reserved
The Important Role of Heteroaromatics in the Design of Efficient Second-Order Nonlinear Optical Molecules: Theoretical Investigation on Push−Pull Heteroaromatic Stilbenes
No full textπ-Face selectivities in nucleophilic additions to 2-endo-arylnorbornan-7-ones: the role of through-space electrostatic interactions
No full textExperimental diastereoselectivities in hydride reduction of 2-endo-arylnorbornan-7-ones and computed transition state energetics reveal that the facial selectivity in these systems is predominantly determined by repulsions between the approaching nucleophile and the electron cloud of the aryl ring
Permutation entropy based real-time chatter detection using audio signal in turning process
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