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22248-27-7

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22248-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22248-27-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,2,4 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 22248-27:
(7*2)+(6*2)+(5*2)+(4*4)+(3*8)+(2*2)+(1*7)=87
87 % 10 = 7
So 22248-27-7 is a valid CAS Registry Number.

22248-27-7Downstream Products

22248-27-7Relevant articles and documents

Reductive Carbonylation of Acetylenes under Water-Gas Shift Reaction Conditions. Synthesis of Furan-2(5H)-ones from Terminal and Non-substituted Acetylenes

Joh, Takashi,Nagata, Hiroyuki,Takahashi, Shigetoshi

, p. 1305 - 1308 (1992)

Under water-gas reaction conditions terminal and non-substituted acetylenes are selectively converted into furan-2(5H)-ones by catalysis with a rhodium carbonyl cluster.

Cobalt-Catalyzed Vinylic C-H Addition to Formaldehyde: Synthesis of Butenolides from Acrylic Acids and HCHO

Yu, Shuling,Hong, Chao,Liu, Zhanxiang,Zhang, Yuhong

, p. 8359 - 8364 (2021/11/01)

A carboxyl-assisted C-H functionalization of acrylic acids with formaldehyde to give butenolides is described. It is the first time that the addition of an inert vinylic C-H bond to formaldehyde has been achieved via cobalt-catalyzed C-H activation. The unique reactivity of the cobalt species was observed when compared with related Rh or Ir catalysts. γ-Hydroxymethylated butenolides were produced by the treatment of Na2CO3 after the catalytic reaction in one pot.

Regioselective Pd-catalyzed alkylative lactonizations of 4-hydroxy-2-alkynecarboxylates with organoboronic acids

Oh, Chang Ho,Park, Su Jin,Ryu, Jin Hyang,Gupta, Arun Kumar

, p. 7039 - 7042 (2007/10/03)

The Pd-catalyzed addition of organoboronic acids to 4-hydroxy-2- alkynecarboxylates and in situ lactonization gave the butenolides with a high control of regioselectivity.

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