67306-03-0Relevant articles and documents
Pd-catalysed β-selective C(sp3)-H arylation of simple amides
Hao, Hong-Yan,Lou, Shao-Jie,Mao, Yang-Jie,Wang, Shuang,Wu, Qiu-Zi,Xu, Dan-Qian,Xu, Zhen-Yuan,Zhou, Kun
supporting information, p. 8055 - 8058 (2021/08/20)
An efficient Pd-catalysed β-C(sp3)-H arylation of diverse native amides with aryl iodides was developed. This protocol overcomes the necessity of the Thorpe-Ingold effect and features broad substrate scope and good functional group tolerance. The potential application of this protocol is collectively demonstrated by gram-scale synthesis and the synthesis of several bioactive molecules.
One-pot multistep synthetic strategies for the production of fenpropimorph using an ionic liquid solvent
Forsyth, Stewart A.,Gunaratne, H. Q. Nimal,Hardacre, Christopher,McKeown, Angela,Rooney, David W.
, p. 94 - 102 (2012/12/21)
The one-pot synthesis of the fungicide fenpropimorph has been achieved using two different synthetic strategies in an ionic liquid. The first pathway consists of a Heck coupling followed by reductive animation; the second pathway consists of an aldol condensation followed by hydrogenation/reductive animation. Homogeneous and heterogeneous palladium catalysts have been utilised in the ionic liquid to provide a catalyst/solvent system that is suitable for recycling and process optimisation.
P-hydroxyaniline derivatives, their preparation and their use
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, (2008/06/13)
p-Hydroxyaniline derivatives of the formula I STR1 where the substituents have the following meanings: R1 is unsubstituted or substituted bicycloalkyl or bicycloalkenyl; R2 and R3 independently of one another are halogen, alkyl, haloalkyl, alkoxy or haloalkoxy; R4 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl, OR5 or NR5 R6, where R5 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl, and R6 is hydrogen or alkyl, and their salts, processes for their preparation, compositions containing them and their use for controlling harmful fungi or pests are described.
Chemoenzymatic process for production of S fenpropimorph
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, (2008/06/13)
A process for stereoselective (enantioselective) production of S-(-)-fenpropimorph, which process comprises reacting 4-tert-butylbenzylchloride or bromide with methyldiethylmalonate, decarbethoxylation of the product into racemic 3-(4-tert-butylphenyl)-2-methylpropionic acid ethyl ester in DMSO in the presence of alkali cations, then Pseudomonas sp.lipase catalyzed resolution of racemic ester to S-(-)-acid, base-catalyzed racemisation and recycling of the R-(+)-ester, acylation of cis-2,6-dimethylmorpholine with the activated derivative of S-(-)-acid, and final reduction of the intermediary amide to provide optically (enantiomerically) pure S-(-)-fenpropimorph. The key enzymatic reaction is fast, employs inexpensive commercially available enzyme, requires minimal work-up, and can therefore easily be performed on a large scale.
Process for the preparation of morpholine and piperidine derivatives
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, (2008/06/13)
The invention relates to an improved process for the preparation of fungicidally active compounds of the formula STR1 wherein R1 and R2 individually are lower alkyl of from 1 to 4 carbons or halo-(lower alkyl) of from 1 to 4 carbons or R1 and R2 together with the carbon to which they are attached form a 3 to 7 membered cycloalkyl ring or lower alkyl-substituted cycloalkyl of from 4 to 9 carbons, R3, R4 and R5 individually are hydrogen or lower alkyl of from 1 to 4 carbons and X is methylene or oxygen, and salts of those compounds which are basic. The improved process comprises the reaction of a compound of the formula, STR2 wherein R3, R4, R5 and X have the significance given hereinabove, with a compound which forms a carbonium ion of the formula STR3 wherein R1 and R2 have the significance as given hereinabove.
Heterocyclics useful as fungicides and fungicidal compositions thereof
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, (2008/06/13)
Heterocyclic compounds characterized by the formula STR1 wherein R1, R3, R4, R5, R6, X and z are as hereinafter set forth, prepared, inter alia, by reacting a compound characterized by the formula STR2 with an amine characterized by the formula STR3 wherein R1, R3, R4, R5, R6, X and Y are as hereinafter set forth, are described. The end products are useful as fungicidal agents.