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1104643-22-2

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1104643-22-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1104643-22-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,0,4,6,4 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1104643-22:
(9*1)+(8*1)+(7*0)+(6*4)+(5*6)+(4*4)+(3*3)+(2*2)+(1*2)=102
102 % 10 = 2
So 1104643-22-2 is a valid CAS Registry Number.

1104643-22-2Downstream Products

1104643-22-2Relevant articles and documents

PROCESS FOR THE EFFICIENT PREPARATION OF 3-HYDROXY PYRROLIDINE AND DERIVATIVES THEREOF

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Page/Page column 12, (2009/03/07)

The present invention relates to an effective process for the preparation of 3-hydroxypyrrolidine or derivatives thereof. The process comprises (a) protecting a hydroxyl group of 4-halo-3-hydroxybutyric acid, (b) reducing an ester group of the compound obtained from the step (a) to obtain a corresponding alcohol compound, (c) reacting the compound obtained from the step (b) with sulfonyl halide to produce a corresponding sulfonate compound, (d) reacting the compound obtained from the step (c) with an amine to obtain 3-hydroxy-protected pyrrolidine compound, and (e) deprotecting the compound obtained from the step (d) to produce the targeted 3-hydroxypyrrolidine or derivatives thereof. The process provides 3-hydroxypyrrolidine or derivatives thereof with high optical purity, because optical purity of the starting material is substantially retained. In the process, each of the steps is carried out in a mild condition and does not require any special purification. This means that the process is useful and adequate for industrial mass production of 3-hydroxypyrrolidine and derivatives thereof having high optical purity.

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