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1321539-24-5

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1321539-24-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1321539-24-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,1,5,3 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1321539-24:
(9*1)+(8*3)+(7*2)+(6*1)+(5*5)+(4*3)+(3*9)+(2*2)+(1*4)=125
125 % 10 = 5
So 1321539-24-5 is a valid CAS Registry Number.

1321539-24-5Relevant articles and documents

Glycinamide hydrochloride as a transient directing group: Synthesis of 2-benzylbenzaldehydes by C(sp3)?H arylation

Wen, Fei,Li, Zheng

supporting information, p. 3462 - 3474 (2020/08/10)

Glycinamide hydrochloride as an inexpensive and commercially available transient directing group for the C(sp3)?H arylation of 2-methylbenzaldehydes is described. A series of practical 2-benzylbenzaldehydes bearing various functional groups are efficiently synthesized in satisfactory yield by this strategy. This method can also be extended to gram scale.

Direct synthesis of anthracenes from o-tolualdehydes and aryl iodides through Pd(II)-Catalyzed sp3 C–H arylation and electrophilic aromatic cyclization

Park, Hyojin,Yoo, Kwangho,Jung, Byunghyuck,Kim, Min

, p. 2048 - 2055 (2018/03/13)

The first direct synthesis of substituted anthracenes from o-tolualdehydes and aryl iodides via a Pd(II)-catalyzed C–H arylation using an alcohol-bearing transient directing group and subsequent AgOTf-assisted electrophilic aromatic cyclization is described. New transient directing groups consisting of amino acids and amino alcohols enhanced the reactivity, and the C–H arylation was complete in 12 h at 90 °C. By simply changing the silver salt to silver triflate, the one-pot synthesis of anthracene derivatives was carried out using the present reaction conditions.

Acetohydrazone: A Transient Directing Group for Arylation of Unactivated C(sp3)-H Bonds

Ma, Fei,Lei, Min,Hu, Lihong

supporting information, p. 2708 - 2711 (2016/06/15)

A straightforward and efficient method has been developed for the synthesis of 2-benzylbenzaldehyde derivatives from 2-methylbenzaldehyde and iodobenzene via a C(sp3)-H activation process. In the course of the activation reaction, acetohydrazon

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