MOLECULES HAVING CERTAIN PESTICIDAL UTILITIES, INTERMEDIATES, COMPOSITIONS, AND PROCESSES, RELATED THERETO
申请人:Dow AgroSciences LLC
公开号:US20160021883A1
公开(公告)日:2016-01-28
This disclosure relates to the field of molecules having pesticidal utility against pests in Phyla Nematoda, Arthropoda, and/or Mollusca, processes to produce such molecules and intermediates used in such processes, compositions containing such molecules, and processes of using such molecules against such pests. These molecules may be used, for example, as nematicides, acaricides, insecticides, miticides, and/or molluscicides. This document discloses molecules having the following formula (“Formula One”).
Photochemical intramolecular amination for the synthesis of heterocycles
作者:Shawn Parisien-Collette、Corentin Cruché、Xavier Abel-Snape、Shawn K. Collins
DOI:10.1039/c7gc02261a
日期:——
formed in good to excellent yields via photochemical conversion of the corresponding substituted aryl azides under irradiation with purple LEDs in a continuous flow reactor. The experimental set-up is tolerant to UV-sensitive functional groups while affording diverse carbazoles, as well as an indole and pyrrole framework, in short reaction times. The photochemical method is presumed to progress through
Palladium-Catalyzed Directed Atroposelective C–H Allylation via β-H Elimination: 1,1-Disubstituted Alkenes as Allyl Surrogates
作者:Bei-Bei Zhan、Zhen-Sheng Jia、Jun Luo、Liang Jin、Xu-Feng Lin、Bing-Feng Shi
DOI:10.1021/acs.orglett.0c03757
日期:2020.12.18
C–H allylation with 1,1-disubstituted alkenes via β-H elimination remains challenging, because of the low reactivity and difficulty of controlling selectivity. Herein, the development of a Pd(II)-catalyzed directed atroposelective C–H allylation with methacrylates is described. Exclusive allylic selectivity was achieved. A vast array of axially chiral biaryl-2-amines are efficiently synthesized with
Synthesis of Axially Chiral Biaryl‐2‐amines by Pd
<sup>II</sup>
‐Catalyzed Free‐Amine‐Directed Atroposelective C−H Olefination
作者:Bei‐Bei Zhan、Lei Wang、Jun Luo、Xu‐Feng Lin、Bing‐Feng Shi
DOI:10.1002/anie.201915674
日期:2020.2.24
A simple and ubiquitously present group, free amine, is used as a directing group to synthesize axially chiral biaryl compounds by PdII -catalyzed atroposelective C-H olefination. A broad range of axially chiral biaryl-2-amines can be obtained in good yields with high enantioselectivities (up to 97 % ee). Chiral spiro phosphoricacid (SPA) proved to be an efficient ligand and the loading could be reduced
Shedding light on azides: [Ru(TPP)CO] (TPP=tetraphenyl porphyrin dianion), white light and O2 were found to be a suitable catalyst combination to perform the annulation of several biaryl azides (see scheme). The high chemoselectivity of the process allows the synthesis of phenanthridines and dihydrophenanthridines in good yield and purity.