Title: Three-Dimensional Correlation of Steric and Electronic Free Energy Relationships Guides Asymmetric Propargylation Author: Kaid C. Harper, Matthew S. Sigman* Journal: Science Affiliation: Department of Chemistry, University of Utah, 315 South 1400 East Rm. 2020 Salt Lake City, Utah 84112-0850 In chemistry today, there is often…
Category: Organic
My Favorite Reaction – Azide Alkyne Huisgen Cycloaddition
The azide alkyne Huisgen cycloaddition easily qualifies as my favorite reaction and my submission to the Chemistry Carnival. It combines simplicity with efficiency in a way that is unmatched by most other chemistries. From clicking side chains onto polymers to conveniently synthesizing a variety of natural…
A New Way to Make Polymers Click
Title: Additive-Free Clicking for Polymer Functionalization and Coupling by Tetrazine–Norbornene Chemistry Authors: Claire F. Hansell†, Pieter Espeel‡, Milan M. Stamenovi‡, Ian A. Barker†, Andrew P. Dove†, Filip E. Du Prez‡, and Rachel K. O’Reilly† Journal: Journal of the American Chemical Society Affiliation: †Department of Chemistry, University of…
Putting the Heat on Hydrogels
Title: Controllable heterogeneity in a supramolecular hydrogel Authors: Atsuomi Shundo*a, Keiko Mizuguchib, Misao Miyamotocd, Masahiro Gotoae and Keiji Tanaka*abe Journal: Chemical Communications Affiliation: aDepartment of Applied Chemistry, Kyushu University; bDepartment of Automotive Science, Kyushu University; cNissan Chemical Industries, Ltd.; dArt, Science and Technology Center for Cooperative Research, Kyushu University; eCenter for…
New Conjugated Polymers for Organic Solar Cells
Title: Indacenodithiophene and Quinoxaline-Based Conjugated Polymers for Highly Efficient Polymer Solar Cells Authors: Yong Zhang, Jingyu Zou, Hin-Lap Yip, Kung-Shih Chen, David F. Zeigler, Ying Sun, and Alex K.-Y. Jen Affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, Washington Journal: Chemistry of Materials Organic solar…
Women and Named Reactions
Title: Critical Perspective: Named Reactions Discovered and Developed by Women Journal: Accounts of Chemical Research Authors: Julie A. Olson and Kevin M. Shea Affiliation: Smith College This post is a bit different than our other posts in that it is not a direct summary of a…
Changing Color with the Application of Charge
Title: Layer-by-Layer Assembled Solid Polymer Electrolyte for Electrochromic Devices Journal: Chemistry of Materials Authors: Chien A. Nguyan,† Avni A. Argun, Paula T. Hammond, Xuehong Lu,†‡ and Poo See Lee†‡§ Affiliation: †Temasek Laboratories, Nanyang Technological University; ‡School of Materials Science and Engineering, Nanyang Technological University; §Department of Chemical…
Organic-Inorganic Composite Nanomaterials
Title: Semiconductor Anisotropic Nanocomposites Obtained by Directly Coupling Conjugated Polymers with Quantum Rods** Authors: Lei Zhao, Xinchang Pang, Ramkrishna Adhikary, Jacob W. Petrich, and Zhiqun Lin Journal: Angewandte Chemie International Ed. Organic-inorganic hybrid solar cells using combinations of conjugated polymers and semiconductor nanocrystals (quantum dots) offer…
Iron Catalyzed C-H Activation
Title: Catalytic C−H Bond Amination from High-Spin Iron Imido Complexes Authors: Evan R. King, Elisabeth T. Hennessy, and Theodore A. Betley Journal: Journal of the American Chemical Society Affiliation: Department of Chemistry and Chemical Biology, Harvard University Proposed catalytic cycle of C-H amination and olefin aziridination.…
Enantioselective α-Arylation of Aldehydes via the Productive Merger of Iodonium Salts and Organocatalysis
Anna E. Allen and David W. C. MacMillan* J. Am. Chem. Soc., ASAP In the Buchwald lab here at MIT (of which I am a part), we use palladium catalysis to construct C-Z bonds, where X = C, O, N, halogen, etc. One reaction developed in…
New Organic Dye for Solar Cells
Title: An Organic D-π-A Dye for Record Efficiency Solid-State Sensitized Heterojunction Solar Cells Authors: Ning Cai§, Soo-Jin Moon‡, Le Cevey-Ha‡, Thomas Moehl‡, Robin Humphry-Baker‡, Peng Wang†, Shaik M. Zakeeruddin‡, and Michael Gratzel‡ Affiliation: †State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese…
A synthesis of strychnine by a longest linear sequence of six steps
A synthesis of strychnine by a longest linear sequence of six steps David B. C. Martin and Christopher D. Vanderwal* Department of Chemistry, University of California, Irvine Chemical Science, Advanced Article Strychnine, a crystalline alkaloid known to most as a powerful toxin used in pesticides, has…
Distinguishing Between Pathways for Transmetalation in Suzuki-Miyaura Reactions
Distinguishing Between Pathways for Transmetalation in Suzuki-Miyaura Reactions Brad P. Carrow and John F. Hartwig* J. Am. Chem. Soc. 2011, 133, 2116. The Suzuki-Miyaura cross-coupling reaction (Fig. 1) is definitely one of the most important reactions in synthetic chemistry, especially in industrial and medical settings. So…
Activating efficient phosphorescence from purely organic materials by crystal design
Journal: Nature Chemistry Authors: Onas Bolton, Kangwon Lee, Hyong-Jun Kim, Kevin Y. Lin, and Jinsang Kim Affiliation: University of Michigan, Ann Arbor Phosphorescent materials, those which emit light long after excitation, have found increasing use in organic electronics as well as chemical and biological sensing. Perhaps…