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1227402-31-4

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1227402-31-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227402-31-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,4,0 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1227402-31:
(9*1)+(8*2)+(7*2)+(6*7)+(5*4)+(4*0)+(3*2)+(2*3)+(1*1)=114
114 % 10 = 4
So 1227402-31-4 is a valid CAS Registry Number.

1227402-31-4Downstream Products

1227402-31-4Relevant articles and documents

Preparation of functionalized organoaluminiums by direct insertion of aluminium to unsaturated halides

Blumke, Tobias,Chen, Yi-Hung,Peng, Zhihua,Knochel, Paul

, p. 313 - 318 (2010)

The preparation of polyfunctional organometallics is important in organic synthesis as these reagents are very popular nucleophiles. The preparation of functionalized aluminium reagents by direct insertion of aluminium powder is in general not possible. Such a reaction would be of special importance owing to the low price of aluminium compared with magnesium (it is half the price), the low toxicity of this metal and the chemoselectivity of the resultant organoaluminium reagents. We have now found that by adding catalytic amounts of selected metallic chlorides (TiCl4, BiCl3, InCl 3 or PbCl2) in the presence of LiCl, aluminium powder inserts into various unsaturated iodides and bromides under mild conditions. These resulting new organoaluminium reagents undergo smooth Pd-catalysed cross-coupling and acylation reactions, as well as copper-catalysed allylic substitutions, affording various interesting products for pharmaceutical and material science applications.

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