156412-97-4Relevant academic research and scientific papers
Evaluation of a synthetic route to ε-viniferin based on a new method for the stereoselective preparation of 2,3-diaryl-2,3-dihydrobenzofurans
Engler, Thomas A.,Draney, Bill W.,Gfesser, Gregory A.
, p. 1661 - 1664 (1994)
Lewis acid-promoted reactions of unsymmetrically substituted (E)-stilbenes with 2-methoxy-1,4-benzoquinones regio- and stereoselectively produce trans 2,3-diaryl-2,3-dihydrobenzofurans.
MOLECULES HAVING PESTICIDAL UTILITY, AND INTERMEDIATES, COMPOSITIONS, AND PROCESSES, RELATED THERETO
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Page/Page column 79; 80, (2016/10/31)
This disclosure relates to the field of moiecuies having pesticida i utility against pests in Phyla Arthropoda, Moliusca, and hJematoda, processes to produce such moiecuies, intermediates used In such processes, pesticidai compositions containing such molecules, and processes of using such pesticidai compositions against such pests. These pesticidai compositions may be used, for example, as acaricldes, insecticides, miticides, moilusclcides, and nematicides. This document discloses moiecuies having the following formula ("Formula One").
Asymmetric catalysis on the nanoscale: The organocatalytic approach to helicenes
Koetzner, Lisa,Webber, Matthew J.,Martinez, Alberto,Defusco, Claudia,List, Benjamin
supporting information, p. 5202 - 5205 (2014/05/20)
The first asymmetric organocatalytic synthesis of helicenes is reported. A novel SPINOL-derived phosphoric acid, bearing extended π-substituents, catalyzes the asymmetric synthesis of helicenes through an enantioselective Fischer indole reaction. A variety of azahelicenes and diazahelicenes could be obtained with good to excellent yields and enantioselectivities. Twisting indoles: A novel chiral Bronsted acid, specifically designed for long-range control on a nanoscale, catalyzes the asymmetric synthesis of azahelicenes through a Fischer indolization. The method has the advantage of starting from simple achiral starting materials, which can be modified by changing the protecting group (R2) or the terminal substituents (R1, R3). The products can be further oxidized to polyaromatic systems.
