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90107-62-3

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90107-62-3 Usage

Chemical Properties

Clear Oil

Uses

(2E,4E)-4-Methyl-2,4-hexadienoic Acid Ethyl Ester is a reactant used in the preparation of Quassin (Q509400), Stigmatellin A (S686780).

Check Digit Verification of cas no

The CAS Registry Mumber 90107-62-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,0 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90107-62:
(7*9)+(6*0)+(5*1)+(4*0)+(3*7)+(2*6)+(1*2)=103
103 % 10 = 3
So 90107-62-3 is a valid CAS Registry Number.

90107-62-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,4-Hexadienoic acid, 4-methyl-, ethyl ester, (2E,4E)-

1.2 Other means of identification

Product number -
Other names 2,4-Hexadienoic acid, 4-methyl-, ethyl ester, (E,E)-

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:90107-62-3 SDS

90107-62-3Downstream Products

90107-62-3Relevant articles and documents

Step-Economic Synthesis of Biomimetic β-Ketopolyene Thioesters and Demonstration of Their Usefulness in Enzymatic Biosynthesis Studies

Hahn, Frank,Ro?, Theresa,Schr?der, Marius,Wunderlich, Johannes

supporting information, (2020/07/04)

Studies on the biosynthetic processing of polyene thioester intermediates are complicated by limited access to appropriate substrate surrogates. We present a step-economic synthetic access to biomimetic β-ketopolyene thioesters that is based on an Ir-catalyzed reductive Horner-Wadsworth-Emmons olefination. New β-ketotriene and pentaenethioates of pantetheine and N-acetylcysteamine were exemplarily synthesized via short and concise routes. The usefulness of these compounds was demonstrated in an in vitro assay with the ketoreductase domain MycKRB from mycolactone biosynthesis.

TRIENETHER COMPOUND, PERFUME COMPOSITION, FOOD AND DRINK PRODUCT AND PERFUMERY AND COSMETIC EACH CONTAINING THEM

-

Paragraph 0082-0084, (2019/04/11)

PROBLEM TO BE SOLVED: To provide a means capable of imparting unique sweetness and fruit juice feeling suggestive of fruit flesh feeling of mango and a core part of pineapple. SOLUTION: A trienether compound having an isopropenyloxy group as represented by formula (1) is provided. EFFECT: Excellent fruit-like fragrance and flavor with unique sweetness and fruit juice feeling can be imparted by adding the compound represented by formula (1) to food and drink product, and perfumery and cosmetic. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT

Ene-diene transmissive cycloaddition reactions with singlet oxygen: The vinylogous gem effect and its use for polyoxyfunctionalization of dienes

Eske, Angelika,Goldfuss, Bernd,Griesbeck, Axel G.,De Kiff, Alan,Kleczka, Margarethe,Leven, Matthias,Neudoerfl, Joerg-M.,Vollmer, Moritz

, p. 1818 - 1829 (2014/03/21)

The singlet oxygen reactivities and regioselectivities of the model compounds 1b-d were compared with those of the geminal (gem) selectivity model ethyl tiglate (1a). The kinetic cis effect is kE/kZ = 5.2 for the tiglate/angelate system 1a/1a′ without a change in the high gem regioselectivity. Further conjugation to vinyl groups enabled mode-selective processes, namely, [4 + 2] cycloadditions versus ene reactions. The site-specific effects of methylation on the mode selectivity and the regioselectivity of the ene reaction were studied for dienes 1e-g. A vinylogous gem effect was observed for the γ,δ-dimethylated and α,γ,δ-trimethylated substrates 1h and 1i, respectively. The corresponding phenylated substrates 1j-l showed similar mode selectivity, as monomethylated 1j exhibited exclusively [4 + 2] reactivity while the tandem products 12 and 14 were isolated from the di- and trimethylated substrates 1k and 1l, respectively. The vinylogous gem effect favors the formation of 1,3-dienes from the substrates, and thus, secondary singlet oxygen addition was observed to give hydroperoxy-1,2-dioxenes 19 and 20 in an ene-diene transmissive cycloaddition sequence. These products were reduced to give alcohols (16, 17, and 18) or furans (24 and 25), respectively, or treated with titanium(IV) alkoxides to give the epoxy alcohols 26 and 27. The vinylogous gem effect is rationalized by DFT calculations showing that biradicals are the low-energy intermediates and that no reaction path bifurcations compete.

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