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81580-34-9

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81580-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81580-34-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,8 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81580-34:
(7*8)+(6*1)+(5*5)+(4*8)+(3*0)+(2*3)+(1*4)=129
129 % 10 = 9
So 81580-34-9 is a valid CAS Registry Number.

81580-34-9Downstream Products

81580-34-9Relevant articles and documents

Evolution of titanium(IV) alkoxides and Raney Nickel for asymmetric reductive amination of prochiral aliphatic ketones

Nugent, Thomas C.,Wakchaure, Vijay N.,Ghosh, Abhijit K.,Mohanty, Rashmi R.

, p. 4967 - 4970 (2005)

(Chemical Equation Presented) A new method for the one-pot asymmetric reductive amination of prochiral aliphatic ketones has been developed. The previously unexplored reagent combination of Ti(OiPr) 4/Raney Ni/H2 in the pr

Sequential reductive amination-hydrogenolysis: A one-pot synthesis of challenging chiral primary amines

Nugent, Thomas C.,Negru, Daniela E.,El-Shazly, Mohamed,Hu, Dan,Sadiq, Abdul,Bibi, Ahtaram,Umar, M. Naveed

, p. 2085 - 2092 (2011/10/19)

Difficult-to-access chiral primary amines were formed in good to high yield and ee using a rare example of a one-pot synthesis from prochiral ketones (sequential reductive amination-hydrogenloysis). As a highlight we also demonstrate a one-pot reductive amination-hydrogenolysis-reductive amination (five reactions) of ortho-methoxyacetophenone resulting in the chiral diamine 1-(2-methoxyphenyl)ethyl-(2-pyridylmethyl)-amine (4) (58% overall yield, >99% ee), a new organocatalyst for aqueous enantioselective aldol reactions. Copyright

SYNTHESIS OF AMINE STEREOISOMERS

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Page/Page column 25-26, (2008/06/13)

The invention relates to methods for producing secondary and tertiary amine diastereomers and corresponding enantiopure or enantioenriched primary or secondary chiral amine products.

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