π‐conjugated Materials Derived From Boron‐chalcogenophene Combination. A Brief Description of Synthetic Routes and Optoelectronic Applications

2021 ◽  
Author(s):  
Ankita Dhiman ◽  
Lingamallu Giribabu ◽  
Rajiv Trivedi
Keyword(s):  
Conjugated Materials ◽  
Synthetic Routes ◽  
Optoelectronic Applications

Recent developments in pyrazine functionalized π-conjugated materials for optoelectronic applications

2020 ◽  
Vol 8 (2) ◽  
pp. 352-379 ◽  
Author(s):  
Puttavva Meti ◽  
Hyung-Ha Park ◽  
Young-Dae Gong
Keyword(s):  
Global Warming ◽  
Conjugated Materials ◽  
Recent Developments ◽  
Optoelectronic Applications ◽  
Alternative Sources

The serious threat of global warming has made it necessary to seek alternative sources of energy.

scholarly journals Functional small-molecules & polymers containing PC and AsC bonds as hybrid π-conjugated materials

2017 ◽  
Vol 53 (6) ◽  
pp. 1120-1123 ◽  
Author(s):  
Daniel Morales Salazar ◽  
Edgar Mijangos ◽  
Sonja Pullen ◽  
Ming Gao ◽  
Andreas Orthaber
Keyword(s):  
Small Molecules ◽  
Functional Materials ◽  
Conjugated Materials ◽  
Optoelectronic Applications

Switch the pnictogen: functional materials containing PC and AsC fragments for optoelectronic applications. An example of a polymer containing arsaalkenes is presented.

Marriage of heavy main group elements with π-conjugated materials for optoelectronic applications

2016 ◽  
Vol 52 (61) ◽  
pp. 9485-9505 ◽  
Author(s):  
Sarah M. Parke ◽  
Michael P. Boone ◽  
Eric Rivard
Keyword(s):  
Recent Work ◽  
Main Group ◽  
The Novel ◽  
Inorganic Elements ◽  
Conjugated Materials ◽  
Main Group Elements ◽  
Optoelectronic Applications

This review showcases recent work devoted to placing heavy inorganic elements within π-conjugated frameworks and the novel properties that can arise.

Organophosphorus-Conjugated Materials for Optoelectronic Applications

2008 ◽  
Vol 183 (2-3) ◽  
pp. 253-257 ◽  
Author(s):  
Brigitte Nohra ◽  
Regis Réau ◽  
Christophe Lescop ◽  
Muriel Hissler
Keyword(s):  
Conjugated Materials ◽  
Optoelectronic Applications

Discovery of a Difluoroglycine Synthesis Method through Quantum Chemical Calculations

2020 ◽  
Author(s):  
Tsuyoshi Mita ◽  
Yu Harabuchi ◽  
Satoshi Maeda
Keyword(s):  
Quantum Chemical Calculations ◽  
Experimental Verification ◽  
Quantum Chemical ◽  
Synthesis Method ◽  
Target Product ◽  
Systematic Exploration ◽  
Hands On ◽  
Retrosynthetic Analysis ◽  
Synthetic Routes ◽  
Verification Process

The systematic exploration of synthetic pathways to afford a desired product through quantum chemical calculations remains a considerable challenge. In 2013, Maeda et al. introduced ‘quantum chemistry aided retrosynthetic analysis’ (QCaRA), which uses quantum chemical calculations to search systematically for decomposition paths of the target product and propose a synthesis method. However, until now, no new reactions suggested by QCaRA have been reported to lead to experimental discoveries. Using a difluoroglycine derivative as a target, this study investigated the ability of QCaRA to suggest various synthetic paths to the target without relying on previous data or the knowledge and experience of chemists. Furthermore, experimental verification of the seemingly most promising path led to the discovery of a synthesis method for the difluoroglycine derivative. The extent of the hands-on expertise of chemists required during the verification process was also evaluated. These insights are expected to advance the applicability of QCaRA to the discovery of viable experimental synthetic routes.

Discovery of a Difluoroglycine Synthesis Method through Quantum Chemical Calculations

2020 ◽  
Author(s):  
Tsuyoshi Mita ◽  
Yu Harabuchi ◽  
Satoshi Maeda
Keyword(s):  
Quantum Chemical Calculations ◽  
Experimental Verification ◽  
Quantum Chemical ◽  
Synthesis Method ◽  
Target Product ◽  
Systematic Exploration ◽  
Hands On ◽  
Retrosynthetic Analysis ◽  
Synthetic Routes ◽  
Verification Process

The systematic exploration of synthetic pathways to afford a desired product through quantum chemical calculations remains a considerable challenge. In 2013, Maeda et al. introduced ‘quantum chemistry aided retrosynthetic analysis’ (QCaRA), which uses quantum chemical calculations to search systematically for decomposition paths of the target product and propose a synthesis method. However, until now, no new reactions suggested by QCaRA have been reported to lead to experimental discoveries. Using a difluoroglycine derivative as a target, this study investigated the ability of QCaRA to suggest various synthetic paths to the target without relying on previous data or the knowledge and experience of chemists. Furthermore, experimental verification of the seemingly most promising path led to the discovery of a synthesis method for the difluoroglycine derivative. The extent of the hands-on expertise of chemists required during the verification process was also evaluated. These insights are expected to advance the applicability of QCaRA to the discovery of viable experimental synthetic routes.

Three-Component [1+1+1] Cyclopropanation with Ruthenium(II)

2018 ◽  
Author(s):  
Tanner C. Jankins ◽  
Robert R. Fayzullin ◽  
Eugene Khaskin
Keyword(s):  
Quaternary Carbon ◽  
Poor Control ◽  
One Step ◽  
Synthetic Routes ◽  
Mechanistic Investigations ◽  
Chiral Centers ◽  
Metal Catalyzed ◽  
The Right ◽  
Substituted Cyclopropanes

We report a one-step, Ru(II)-catalyzed cyclopropanation reaction that is conceptually different from the previously reported protocols that include Corey-Chaykovsky, Simmons-Smith, and metal catalyzed carbene attack on olefins. Under the current protocol, various alcohols are transformed into sulfone substituted cyclopropanes with excellent isolated yields and diastereoselectivities. This new reaction forms highly congested cyclopropane products with three new C–C bonds, three or two new chiral centers and one new quaternary carbon center. 22 examples of isolated substrates are given. Previously reported synthetic routes for similar substrates are all multi-step, linear routes that proceed with overall low yields and poor control of stereochemistry. Experimental mechanistic investigations suggest initial metal-catalyzed dehydrogenation of the alcohol substrate and catalyst independent stepwise attack of two equivalents of sulfone on the aldehyde under basic conditions. While the Ru(II) is only responsible for the initial dehydrogenation step, the rate of aldehyde formation is crucial to maintaining the right balance of intermediates needed to afford the cyclopropane product.

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