CYCLOHEXANONE COMPOUNDS AND HERBICIDES COMPRISING THE SAME
申请人:Nakashima Yosuke
公开号:US20140228219A1
公开(公告)日:2014-08-14
The present invention provides a compound having an excellent efficacy for controlling weeds. A cyclohexanone compound of the formula (I): wherein m is an integer of 1, 2 or 3; n is an integer of any one of 1 to 5; X represents CH
2
, O, S, S(O) or S(O)
2
; R
1
represents a hydrogen atom or a methyl group; R
2
and R
3
represents a hydrogen atom, a C
1-6
alkyl group and the like; R
4
represents a C
6-10
aryl group or a five- to six-membered heteroaryl group; G represents a hydrogen atom and the like; Z represents a halogen atom, a cyano group, a nitro group, a phenyl group, a C
1-6
alkyl group and the like; is useful as an active ingredient for herbicides.
There is provided a herbicidal composition containing a cyclohexanone compound represented by Formula (I) and at least one compound selected from Group A.
Group A: consisting of benoxacor, cloquintocet-mexyl, cyometrinil, dichlormid, fenchlorazole-ethyl, fenclorim, flurazole, furilazole, mefenpyr-diethyl, oxabetrinil, isoxadifen-ethyl, cyprosulfamide, fluxofenim, 1,8-naphthalic anhydride, and AD-67.
作者:Subir Goswami、Kenichi Harada、Mohamed F. El‐Mansy、Rajinikanth Lingampally、Rich G. Carter
DOI:10.1002/anie.201805370
日期:2018.7.16
The efficient, 12–14 step (LLS) total synthesis of (−)‐halenaquinone has been achieved. Key steps in the synthetic sequence include: (a) proline sulfonamide‐catalyzed, Yamada–Otani reaction to establish the C6 all‐carbon quaternary stereocenter, (b) multiple, novel palladium‐mediated oxidative cyclizations to introduce the furan moiety, and (c) oxidative Bergman cyclization to form the final quinone
Total Syntheses of Aromatic Abietane Diterpenoids Utilizing Advances in the Pummerer Rearrangement
作者:Xin Li、Rich G. Carter
DOI:10.1021/acs.orglett.8b02060
日期:2018.9.21
The first totalsyntheses of triptobenzene T, vitexifolin C, 4-epi-triptobenzene L, triptobenzene L, and nepetaefolin F have been accomplished through an enantioselective, common intermediate approach and have enabled the confirmation and/or establishment of the absolute stereochemistry of each natural product synthesized. Application of three new and/or underutilized Pummerer reaction pathways proved