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137050-87-4

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137050-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137050-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,5 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137050-87:
(8*1)+(7*3)+(6*7)+(5*0)+(4*5)+(3*0)+(2*8)+(1*7)=114
114 % 10 = 4
So 137050-87-4 is a valid CAS Registry Number.

137050-87-4Relevant articles and documents

Carbohydrates as Chiral Templates: Diastereoselective Synthesis of N-Glycosyl-N-homoallylamines and and β-Amino Acids from Imines

Laschat, Sabine,Kunz, Horst

, p. 5883 - 5889 (2007/10/02)

Complexing properties and chirality of carbohydrates were utilized in diastereoselective reactions of O-pivaloylated N-galactosylimines with allylsilanes and -stannanes.With allyltrimethylsilane in the presence of SnCl4 imines 2 of aromatic and heteroaromatic aldehydes were converted to homoallylamines 3, giving ratios of diastereomers higher than 7:1.No addition products derived from α-anomeric aromatic imines were formed.Aliphatic homoallylamines 3 were synthesized by using allyltributylatannane in the presence of SnCl4.Both α- and β-anomeric aliphatic imines reacted with the allylstannane.They gave the same ratio of diastereomers and showed the same sense of asymmetric induction.

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