[EN] 2-(4-CHLOROPHENOXY)-N-((1 -(2-(4-CHLOROPHENOXY)ETHYNAZETIDIN-3-YL)METHYL)ACETAMIDE DERIVATIVES AND RELATED COMPOUNDS AS ATF4 INHIBITORS FOR TREATING CANCER AND OTHER DISEASES [FR] DÉRIVÉS DE 2-(4-CHLOROPHÉNOXY)-N-((1-(2-(4-CHLOROPHÉNOXY)ÉTHYNAZÉTIDINE-3-YL)MÉTHYL)ACÉTAMIDE ET COMPOSÉS APPARENTÉS SERVANT D'INHIBITEURS D'ATF4 POUR LE TRAITEMENT DU CANCER ET D'AUTRES MALADIES
Catalytic transformations of diazo compounds promoted by platinum(0) and dicationic platinum(II) complexes
作者:Roberta Bertani、Monica Biasiolo、Katia Darini、Rino A Michelin、Mirto Mozzon、Fabiano Visentin、Livio Zanotto
DOI:10.1016/s0022-328x(01)01082-8
日期:2002.1
9-Diazofluorene (DAF) is decomposed either stoichiometrically or catalytically in the presence of the platinum(0) complex [Pt(C2H4)(PPh3)2] to give difluoren-9-ylidene-hydrazine in high yield. Under analogous reaction conditions, diphenyldiazomethane gives mostly the azine, Ph2CNNCPh2, while ethyl diazoacetate (EDA) affords, in low yield, a mixture of diethyl fumarate and maleate in approximately
Gold(<scp>i</scp>) “click” 1,2,3-triazolylidenes: synthesis, self-assembly and catalysis
作者:Kelly J. Kilpin、Ursula S. D. Paul、Ai-Lan Lee、James D. Crowley
DOI:10.1039/c0cc02185g
日期:——
Novel gold(I) âclickâ carbene(1,2,3-triazolylidene) complexes have been synthesised, characterised and exploited for the self-assembly of a metallomacrocycle and as precatalysts for gold(I)-catalysed reactions.
[EN] PROCESS FOR PRODUCING OPTICALLY ACTIVE 3-(4-HYDROXYPHENYL)PROPIONIC ACIDS<br/>[FR] PROCEDE DE PRODUCTION D'ACIDES 3-(4-HYDROXYPHENYL)PROPIONIQUES OPTIQUEMENT ACTIFS
申请人:TAKASAGO PERFUMERY CO LTD
公开号:WO2005051882A1
公开(公告)日:2005-06-09
The present invention relates to a process for producing an optically active 3-(4-hydroxyphenyl)propionic acid useful as intermediates for medicines, through short steps in good yield and with high optical purity. More specifically, the present invention relates to a process for producing an optically active 3-(4-hydroxyphenyl)propionic acid of the formula (6): wherein R2 is an alkyl group; R5 to R8 are each independently a hydrogen atom or a substituent; and the symbol * is an chiral carbon atom, or a salt thereof, which comprises reacting a benzaldehyde of the formula (1): wherein R1 is a protective group; and R5 to R8 are each the same as defined above, with a glycolic acid derivative of the formula (2): wherein R3 is a hydrocarbon group; and R2 is the same as defined above, hydrolyzing the resulting product to give a cinnamic acid of the formula (4): wherein R1, R2 and R5 to R8 are each the same as defined above, or a salt thereof, and subjecting the resulting cinnamic acid (4) or a salt thereof to asymmetric hydrogenation to give an optically active phenylpropionic acid of the formula (5): wherein all the symbols are each the same as defined above, or a salt thereof, followed by deprotection.
The invention relates to the use of piperazine compounds of formula (I) or the agriculturally useful salts of piperazine compounds of formula (I) as herbicides, the variables in formula (I) being defined as cited in the claims and the description.
Process for producing optically active 3-(4-hydroxyphenyl)proprionic acids
申请人:Yokozawa Tohru
公开号:US20070142472A1
公开(公告)日:2007-06-21
The present invention relates to a process for producing an optically active 3-(4-hydroxyphenyl)propionic acid useful as intermediates for medicines, through short steps in good yield and with high optical purity. More specifically, the present invention relates to a process for producing an optically active 3-(4-hydroxyphenyl)propionic acid of the formula (6): wherein R
2
is an alkyl group; R
5
to R
8
are each independently a hydrogen atom or a substituent; and the symbol * is an chiral carbon atom, or a salt thereof, which comprises reacting a benzaldehyde of the formula (1): wherein R
1
is a protective group; and R
5
to R
8
are each the same as defined above, with a glycolic acid derivative of the formula (2): wherein R
3
is a hydrocarbon group; and R
2
is the same as defined above, hydrolyzing the resulting product to give a cinnamic acid of the formula (4): wherein R
1
, R
2
and R
5
to R
8
are each the same as defined above, or a salt thereof, and subjecting the resulting cinnamic acid (4) or a salt thereof to asymmetric hydrogenation to give an optically active phenylpropionic acid of the formula (5): wherein all the symbols are each the same as defined above, or a salt thereof, followed by deprotection.