In which fields is sodium propionate widely used
Time of Update: 2021-09-04
During the daily maintenance of leather, if you want to improve the alkali resistance of the leather itself and enhance the service life of the product, with the help of sodium propionate, the effect will be better .
Process flow and product use of ethyl propionate
Time of Update: 2021-08-14
6. Production process(1) Put chloroform as the solvent in the esterification reactor , then add propionic acid and ethanol, add sulfuric acid dropwise with stirring, and heat to reflux for reaction .
of acesulfame potassium, saccharin, glycine and cyclohexyl (substituted) sulfonic acid"
Time of Update: 2021-08-13
Food Partner Network News Food Sweetener Saccharin Annex No.
Taiwan detected illegal use of cyclohexyl (substitute) sulfonamide sweetener for salt-baked walnuts exported from mainland China
Time of Update: 2021-03-20
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Psoriasis treatment drug Bryhali (halobetasol propionate) emulsion launched in US
Time of Update: 2020-06-11
The safety of Bryhali emulsions has been confirmed in clinical studies, with patients treated with a daily local drug for 8 weeks, showing good tolerance and no increase in epidermis atrophy.
Palladium / Xu Phos catalyzed asymmetric tandem heck / Suzuki coupling of o-iodoaryl allylic compounds with organic boric acid
Time of Update: 2020-01-08
Recently, Zhang Junliang's research group of Fudan University has realized palladium catalyzed tandem heck / Suzuki coupling reaction between o-iodoaryl allylic compounds and organic boric acid with high enantioselectivity by using their independently developed sadphos series ligands (Xu Phos).
JACS: selective defluorination and allylation of trifluoromethylarene
Time of Update: 2019-09-06
α - difluorobenzyl structure exists widely in the active molecules of drugs, and it is a very valuable fragment
In drug design, it can increase
Green catalytic synthesis team of Shaanxi Normal University: Iron catalyzed anti martensitic hydroamination and hydroamidation of allyl alcohol
Time of Update: 2019-09-05
Lead hydroamination is an important method to construct C-N bond
In the reaction, the N-H unit of primary amine or secondary amine is added to C-C double bond or triple
JACS: palladium catalyzed asymmetric allylic trifluoromethylation reported by Trost et al
Time of Update: 2019-07-24
Of Stanford University reported the first palladium catalyzed asymmetric allylic trifluoromethylation reaction involving unique ligands for the first time.
Asymmetric decarboxylation and allyl alkylation of α - arylnitroester catalyzed by angelw: PD
Time of Update: 2019-07-14
Trost group of Stanford University has successfully developed PD catalyzed asymmetric decarboxyallyl alkylation of α - arylnitroester, which can obtain a series of tetrasubstituted TERT nitroalkanes with good yield and enantioselectivity.
Asymmetric allylation of 1,3-dioxobronylheterocyclopentene catalyzed by JACS: PD
Time of Update: 2019-07-05
Asymmetric functionalization of carbonyl compounds is one of the important methods to construct complex molecules and drugs
The asymmetric allyl alkylation of α
JACS: bimetallic catalytic isomerization of epoxide to allyl alcohol
Time of Update: 2019-06-24
Recently, Song Lin and others from Cornell University published a basic redox relay strategy for isomerization of epoxides to allylic alcohols under mild conditions using Ti and Co double catalysis.
selectivity, regioselectivity and enantioselective allylation of hydroxylamine
Time of Update: 2019-06-15
Leading scientific achievements: iridium catalyzed chemical selectivity, regioselectivity and enantioselective allylation of hydroxylamine; nitrogen chemistry has attracted the attention of organic chemists due to its important applications in life, medicine and chemical industry.
Angelw: parallel kinetic resolution of allyl 1,3-dione
Time of Update: 2019-06-12
Int. ed.) in order to further understand the reaction mechanism, the author conducted a related control experiment (scheme 8).
Asymmetric allyl alkylation of amidenol catalyzed by angelw: IR
Time of Update: 2019-06-02
Int. ed.) under the optimal reaction conditions, the author investigated the substrate range (scheme 2) of allyl carbonyl compound 1.
Cheng Jinpei, Li Xin group, Nankai University: asymmetric allyl alkylation to prepare chiral phosphorus compounds
Time of Update: 2019-05-26
SCI.) asymmetric allylic alkylation (AAA) based on MBH adduct catalyzed by organic Lewis base is a very simple and efficient method for the synthesis of chiral compounds, but it is mainly used for the construction of carbon centered chiral compounds.
Angelw: Ru (II) catalyzes the series reaction of C-H Allylation and [3 + 2] dipolar cycloaddition of allylic acetals
Time of Update: 2019-05-21
Azomethionine imines have been widely used in cycloaddition reactions with various coupling agents such as alkenes, alkynes and allylites
In addition, in the C-H
ACS catalyst: PD catalyzed isocyanation of allyl phosphate
Time of Update: 2019-05-07
Cyanide is a typical nucleophilic reagent with multiple reaction sites
The compound can react with the electrophilic reagent to form C-terminal substituted cyanides or N
Asymmetric allyl alkylation of β, γ - Unsaturated - α - aminonitrile catalyzed by angelw: RH
Time of Update: 2019-05-03
Heteroatom stable allylic anions can be used as high enol equivalents for the synthesis of β - substituted carbonyl compounds, but there is a problem of poor regioselectivity
University: palladium catalyzed asymmetric allylic C c-h-bond alkylation of 1,4-diene and acridolide
Time of Update: 2019-04-15
The author of the paper: Lin Huachen's asymmetric allyl alkylation is one of the most important methods for asymmetric catalytic formation of C-C bond, which usually requires