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ethyl 4-(3-oxobut-1-yn-1-yl)benzoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1386903-40-7

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1386903-40-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1386903-40-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,6,9,0 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1386903-40:
(9*1)+(8*3)+(7*8)+(6*6)+(5*9)+(4*0)+(3*3)+(2*4)+(1*0)=187
187 % 10 = 7
So 1386903-40-7 is a valid CAS Registry Number.

1386903-40-7Relevant academic research and scientific papers

Lewis-base-catalysed selective reductions of ynones with a mild hydride donor

Sch?mberg,Zi,Vilotijevic

, p. 3266 - 3269 (2018)

Ynones are efficiently reduced with a mild hydride donor in the presence of a catalytic amount of nucleophilic phosphines. The reactions are selective 1,2-reductions that give propargyl alcohols in yields of up to 96%. It is proposed that success in these reactions depends on the activation of ynones by a Lewis base catalyst. A protic additive plays a key role in suppressing the undesired reaction pathways and accelerating the 1,2-reductions.

Aerobic oxidation of propargylic alcohols to αβ,-unsaturated alkynals or alkynones catalyzed by fe(NOH, TEMPO and sodium chloride in toluene

Liu, Jinxian,Xie, Xi,Ma, Shengming

experimental part, p. 1569 - 1576 (2012/06/30)

A practical aerobic oxidation of propargylic alcohols using Fe(NOH, TEMPO and sodium chloride in toluene at room temperature was applied to various type of propargylic alcohols affording ,-unsaturated alkynals or alkynones in good to excellent yields. This protocol could be applied in academic laboratories as well as in industrial-scale production.

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