The First Enantioselective Organocatalytic Mukaiyama−Michael Reaction: A Direct Method for the Synthesis of Enantioenriched γ-Butenolide Architecture
作者:Sean P. Brown、Nicole C. Goodwin、David W. C. MacMillan
DOI:10.1021/ja029095q
日期:2003.2.1
an important chiralsynthon found among many natural isolates. The (2S,5S)-5-benzyl-2-tert-butyl-imidazolidinone amine catalyst has been found to mediate the conjugate addition of a wide variety of substituted and unsubstituted silyloxy furans to unsaturated aldehydes. A diverse range of aldehyde substrates can be accommodated in this new organocatalytic transformation. Application of this new asymmetric
ISOTHIOCYANATE COMPOUNDS, PHARMACEUTICAL COMPOSITIONS, AND USES THEREOF
申请人:Rutgers, The State University of New Jersey
公开号:US20150246887A1
公开(公告)日:2015-09-03
Provided herein are compositions of matter and pharmaceutical compositions thereof, for use in inhibiting the growth of various microbial pathogens, including bacteria, fungi, protozoa, and viral pathogens. Also provided herein are methods of treating microbial diseases/infections and cancer with the compositions. The compositions are additionally useful in wood preservation and food preservation by inhibition of microbial growth.
A General Approach to Deboronative Radical Chain Reactions with Pinacol Alkylboronic Esters
作者:Emy André‐Joyaux、Andrey Kuzovlev、Nicholas D. C. Tappin、Philippe Renaud
DOI:10.1002/anie.202004012
日期:2020.8.10
suitable substrates. We report their in situ conversion into alkylboronic catechol esters by boron‐transesterification with a substoichiometric amount of catechol methyl borate combined with an array of radical chain processes. This simple one‐pot radical‐chain deboronative method enables the conversion of pinacol boronic esters into iodides, bromides, chlorides, and thioethers. The process is also suitable
The invention relates to novel organic semiconducting compounds containing apolycyclicunit, to methods for their preparation and educts or intermediates used therein, to compositions, polymer blends and formulations containing them, to the use of the compounds, compositions and polymer blends as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices, perovskite-based solar cell (PSC) devices, organic photodetectors (OPD), organic field effect transistors (OFET) and organic light emitting diodes (OLED), and to OE, OPV, PSC, OPD,OFET and OLED devices comprising these compounds, compositions or polymer blends.
Highly Efficient Two-Step Synthesis of C-sp<sup>3</sup>-Centered Geminal Diiodides
作者:Jean-Manuel Cloarec、André B. Charette
DOI:10.1021/ol047997l
日期:2004.12.1
[reaction: see text] Trisubstituted gem-diiodoalkenes of functionalized chains are efficiently reduced to the corresponding terminal geminaldiiodides in high yields upon treatment with the diazene precursor, diethyl 4-(hydrazinosulfonyl)-benzyl phosphonate.