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Matthias Lehmann 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(15):3638-3651
Hekates : Modular synthesis of star‐shaped molecules affords mesogens with various functional units and incompatible peripheral chains (see figure). The supramolecular order in the complex, soft, liquid‐crystalline, functional materials can be programmed by variation of the elements of diversity at a meso‐ and nanoscale.
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Dhevalapally B. Ramachary Prof. Dr. Rajasekar Sakthidevi 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(18):4516-4522
A practical and sustainable chemical process for the synthesis of highly substituted aldol?lactol products was achieved for the first time through the asymmetric Barbas–List aldol (BLA) reaction of 2‐hydroxybenzaldehydes with acetone in the presence of a catalytic amount of trans‐4‐OH‐L ‐proline (see scheme).
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Yong‐Biao Men Junliang Sun Dr. Zhi‐Tang Huang Prof. Qi‐Yu Zheng Prof. 《Angewandte Chemie (International ed. in English)》2009,48(16):2873-2876
Borromean organic networks: The rigid and trigonal pyramidal molecule, 1,3,5‐tris(4‐carboxyphenyl)adamantane (TCA), self‐assembles into a 2D Borromean linked network by hydrogen bonds. Different linkers (methanol, phenazine, 4,4′‐bipyridine, and 4,4′‐azopyridine) result in more complex Borromean networks or a 3D polycatenation network.
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Oleg Vechorkin Xile Hu Prof. Dr. 《Angewandte Chemie (International ed. in English)》2009,48(16):2937-2940
Reacting in the 'Ni'ck of time : The title reaction is realized by using an isolated NiII complex ( 1 ). The catalysis tolerates a wide range of important functional groups that are often incompatible with Grignard reagents in cross‐coupling reactions.
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Feng Gao Dr. Xuxu Yan Karine Auclair Prof. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(9):2064-2070
Just five steps! The synthesis of a phosphonate‐linked aminoglycoside‐coenzyme A derivative (see scheme) that includes a Michael addition in water has been realized in just five steps.
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Siddharth Roy Anubha Sharma Soumyaditya Mula Subrata Chattopadhyay Prof. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(7):1713-1722
Tuning in : The reaction of halocyclopentane organometallic reagents can be tuned by the choice of metal (see scheme). Cyclopentylmagnesium bromide reduces aldehydes and ketones to the corresponding alcohols. However, in the presence of ZnCl2, normal Grignard addition to the ketones gives tertiary alcohols with complete diastereoselectivity. These protocols were used in the asymmetric synthesis of two medicinally important compounds.
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Benito Alcaide Prof. Dr. Pedro Almendros Dr. Rocío Carrascosa Dipl.‐Chem. Teresa Martínez del Campo Dipl.‐Chem. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(11):2496-2499
Positive discrimination : Chemo‐ and regioselective palladium‐catalyzed cycloetherification of allendiols, namely β,γ‐ and γ,δ‐allendiols, may occur by judicious choice of palladium‐catalyzed conditions owing to their potential ability to discriminate between both nucleophilic sites (see scheme).
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Gérard Cahiez Dr. Laura Foulgoc Alban Moyeux 《Angewandte Chemie (International ed. in English)》2009,48(16):2969-2972
Aryl–alkyl cross‐coupling products are obtained by the iron‐catalyzed oxidative heterocoupling of organozinc reagents under mild conditions. This novel reaction pathway is versatile, allowing for the use of primary and secondary aliphatic diorganozinc reagents as coupling partners as well as tolerating functionalized aryl‐ and alkylzinc reagents.
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Rik P. Megens Tieme A. van den Berg Dr. A. Dowine de Bruijn Ben L. Feringa Prof. Dr. Gerard Roelfes Dr. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(7):1723-1733
Bleomycin mimics : Efficient oxidative double‐strand DNA cleavage has been achieved with multinuclear non‐heme iron complexes (see scheme). These complexes therefore represent model compounds that mimic the mode of action of the anti‐tumor drug bleomycin.