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136408-34-9

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136408-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136408-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,4,0 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 136408-34:
(8*1)+(7*3)+(6*6)+(5*4)+(4*0)+(3*8)+(2*3)+(1*4)=119
119 % 10 = 9
So 136408-34-9 is a valid CAS Registry Number.

136408-34-9Downstream Products

136408-34-9Relevant articles and documents

Preparation and reactivity of chiral β-amino-alkylzinc iodides and related configurationally stable zinc organometallics

Duddu,Eckhardt,Furlong,Knoess,Berger,Knochel

, p. 2415 - 2432 (1994)

Several zinc organometallics bearing at the β-position a carbamate or an amido function with an acidic N-H group were prepared using the direct insertion of zinc dust into the corresponding alkyl iodides in THF or THF:DMSO mixtures. Most of the starting iodides were obtained from natural α-amino acids and the resulting zinc species afforded after transmetalation with CuCN.2LiCl and reaction with a selection of relatively reactive electrophiles a variety of polyfunctional 1,2-amino alcohol derivatives and carbamates in optically pure form. Several secondary β-amido alkyl iodides were converted to the corresponding chiral zinc reagents and trapped with electrophiles. The configurational stability of chiral secondary organozinc compounds and the stereochemical course of their reactions were examined.

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