- Exploratory studies en route to 5-alkyl-hyacinthacines: Synthesis of 5- epi -(-)-hyacinthacine A3 and (-)-hyacinthacine A3
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Synthesis of 5-epi-(-)-hyacinthacine A3 and (-)-hyacinthacine A3 has been achieved from the d-xylose-derived polyhydroxylated cyclic nitrone. Our synthetic strategy is potentially general and flexible for the synthesis of both epimer
- Hu, Xiang-Guo,Jia, Yue-Mei,Xiang, Junfeng,Yu, Chu-Yi
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scheme or table
p. 982 - 986
(2010/07/10)
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- Scavenger assisted combinatorial process for preparing libraries of tertiary amine compounds
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This invention relates to a novel solution phase process for the preparation of tertiary amine combinatorial libraries. These libraries have utility for drug discovery and are used to form wellplate components of novel assay kits.
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- Lactone insect lures
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Novel multi-component insect lures comprising (3Z,6Z)-dodecadien-12-olide and 13-methyl-(5Z,8Z)-tetradecadien-13-olide together with a fungal volatile selected from the group consisting of 1-octen-3-ol and 3-methylbutanol, wherein the amount of 11-methyl-(3Z,6Z)-dodecadien-11-olide in the composition is substantially zero, and a novel method for production of these pheromones, whereby the cost of active components may be reduced to economically advantageous levels. The lures are particularly effective in attracting saw-toothed grain beetles of group Coleoptera, Cucujidae, particularly species Oryzaephilus surinamensis.
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- TRIMETHYLSILYL-HALIDE-MEDIATED CONJUGATED ADDITION TO ALLYLIC ACETALS
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Trimethylsilyl chloride can effect the conjugated addition of NaX (X=Br, I, SCN) to α,β-unsaturated acetals and ketals without deprotection of the carbonyl group.
- Feringa, Ben L.
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- THE USE OF METALLOIDS (-SiMe3,-SnR3) AS PROTECTED CARBANIONS; SELECTIVE ACTIVATION AND NEW CYCLIZATION PROCESSES
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Two aspects of organosilicon and -tin chemistry will be dealt with in this paper: the reactivity of allylmetalloids and the potential of the C-MR3 function as a protected carbanion which can be unmasked to provide synthetically useful carbon nucleophiles with the primary focus on the latter.
- Andarsen, Niels H.,McCrae, David A.,Grotjahn, Douglas B.,Gabhe, Satish Y.,Theodore, Louis J.,et al.
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p. 4069 - 4079
(2007/10/02)
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- Carbocyclizations employing 2-Silyl-1,3-dithians
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Dithianyl anions capable of carbocyclization via either direct or Michael addition to a carbonyl unit can be generated from 2-trimethylsilyl-1,3-dithians.
- Grotjahn, Douglas B.,Andersen, Niels H.
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p. 306 - 307
(2007/10/02)
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