申请人:The Board of Regents of the Nevada System of Higher Education on Behalf of the University of Ne
公开号:US20180051044A1
公开(公告)日:2018-02-22
Provided herein are functionalized phosphonates and methods for making same via phosphite addition to an atom alpha to an electron withdrawing group. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
BX3-Mediated Intermolecular Formation of Functionalized 3-Halo-1H-indenes via Cascade Halo-Nazarov-Type Cyclization
作者:Rodney A. Fernandes、Anupama Kumari
DOI:10.1055/s-0039-1690881
日期:2020.8
inexpensive reagents and a convenient and mild reaction procedure to generate halo-functionalized indenes (45 examples). The reaction was also extended to 8-formylcoumarins to deliver coumarin-based 3-halo-1H-indenes in 79–95% yield (6 examples). The reaction involves conversion of the aldehyde into an sp3 carbon with two new C–C bonds and additionally a C–X bond is formed (X = halide).
Studies toward the Total Syntheses of Cucurbitacins B and D
作者:Michael E. Jung、Rebecca M. Lui
DOI:10.1021/jo101242e
日期:2010.11.5
Synthetic efforts toward the convergent construction of the tetracyclic triterpenoids cucurbitacins B and D are described. The results of a Diels−Alder study examining the effects of steric and electronic variations of 2-methyl-2-cyclohexenone on the endo/exo-diastereoselectivity of the reaction are presented. The diastereomer of the core of the cucurbitacins, epimeric at C8, C9, and C10, 51, was synthesized
Benzazolonylcarbonylcyclohexenones and their use ss herbicides
申请人:——
公开号:US20040063584A1
公开(公告)日:2004-04-01
Cyclohexenone derivatives of benzazolones of the formula I
1
where the variables R
1
, R
2
, R
3
, A and Hex are as defined in claim 1, and their salts, and their use for controlling harmful plants, are described.