Triethylammonium acetate (TEAA): a recyclable inexpensive ionic liquid promotes the chemoselective aza- and thia-Michael reactions
作者:Akhilesh K. Verma、Pankaj Attri、Varun Chopra、Rakesh K. Tiwari、Ramesh Chandra
DOI:10.1007/s00706-008-0886-4
日期:2008.9
A new, highlyefficient, inexpensive, recyclable, mild, convenient, and green protocol for chemoselective aza/thia- Michaeladdition reactions of amines/thiols to α,β - unsaturated compounds using triethylammonium acetate ( TEAA ) ionic liquid was developed. The catalyst can be recycled ten times and obviate the need for toxic and expensive catalysts.
Lithium bis[(1R,5R)-3-aza-3-benzyl-1,5-diphenylpentan-1,5-diolato]-aluminium — A new heterobimetallic catalyst for Michael addition reactions
作者:G Manickam、G Sundararajan
DOI:10.1016/s0040-4020(99)00044-7
日期:1999.2
LiAlH4 to give the heterobimetallic complex 2 of the composition [(12-Al)Li]. Complex 2 was characterised by 1H-, 13C-, 27Al- and 7Li-NMR spectral data. Also, 2 when used in catalytic amounts accelerates Michaeladdition of malonates and thiophenol to α,β-unsaturated compounds like aldehydes, ketones, cyano and nitro compounds with high yield. Asymmetric induction in the Michael adducts has also been
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.
Facile formation of lanthanoid(III) thiolates from benzophenone-catalyzed reaction of lanthanoid metals and disulfides, and their use as sulfenylating reagents
Lanthanoidmetal reacts with diaryl and -alkyl disulfides in the presence of a catalytic amount of benzophenone to generate lanthanoid (III) thiolates. Lanthanoidthiolates thus formed in situ, react with enones to give Michael adducts in good yields.