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1431299-12-5

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1431299-12-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1431299-12-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,2,9 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1431299-12:
(9*1)+(8*4)+(7*3)+(6*1)+(5*2)+(4*9)+(3*9)+(2*1)+(1*2)=145
145 % 10 = 5
So 1431299-12-5 is a valid CAS Registry Number.

1431299-12-5Downstream Products

1431299-12-5Relevant articles and documents

Intermolecular enantioselective Heck-Matsuda arylations of acyclic olefins: Application to the synthesis of β-aryl-γ-lactones and β-aryl aldehydes

Oliveira, Caio C.,Angnes, Ricardo A.,Correia, Carlos Roque D.

, p. 4373 - 4385 (2013/06/27)

We describe herein a synthetically useful method for the enantioselective intermolecular Heck-Matsuda arylation of acyclic allylic alcohols. Aryldiazonium tetrafluoroborates were applied as arylating agents in the presence of Pd(TFA)2 and a chiral, commercially available, bisoxazoline ligand. The methodology is straightforward, robust, scalable up to a few grams, and of broad scope allowing the synthesis of a range of β-aryl-carbonyl compounds in good to high enantioselectivities and yields. This new enantioselective Heck-Matsuda arylation allowed the synthesis of β-aryl-γ-lactones and β-aryl aldehydes, which play a vital role as key intermediates in the synthesis of the biologically active compounds, such as (R)-baclofen, (R)-rolipram, (S)-curcumene, (S)-dehydrocurcumene, and (S)-tumerone.

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