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128720-33-2

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128720-33-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128720-33-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,2 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128720-33:
(8*1)+(7*2)+(6*8)+(5*7)+(4*2)+(3*0)+(2*3)+(1*3)=122
122 % 10 = 2
So 128720-33-2 is a valid CAS Registry Number.

128720-33-2Downstream Products

128720-33-2Relevant academic research and scientific papers

Assembly of functionalized α-hydroxy carbonyl compounds via combination of N-heterocyclic carbene and Pd catalysts

He, Jinmei,Tang, Shibing,Tang, Shouchu,Liu, Jian,Sun, Yongquan,Pan, Xinfu,She, Xuegong

experimental part, p. 430 - 433 (2009/05/11)

Functionalized α-hydroxy carbonyl compounds were prepared from various aldehydes and allylic acetates via a multicomponent reaction, which were catalyzed by N-heterocyclic carbene and Pd catalysts in one pot.

Allylation of α-Diketones by Photochemical Reactions with Allylic Stannanes. Regiochemistry of Introduced Allylic Group

Takuwa, Akio,Nishigaichi, Yutaka,Yamashita, Koichi,Iwamoto, Hidetoshi

, p. 639 - 642 (2007/10/02)

Irradiation of an acetonitrile solution of benzils and acenaphthenequinone in the presence of allylic stannanes afforded homoallylic alcohols in good yields.In the reaction with unsymmetric allylstannanes, the allylic groups were introduced predominantly at α-positions.The completely regioselective introduction could be achieved by the irradiation in the presence of NaOH or CoCl2 as an additive.

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