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1045770-53-3

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1045770-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1045770-53-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,5,7,7 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1045770-53:
(9*1)+(8*0)+(7*4)+(6*5)+(5*7)+(4*7)+(3*0)+(2*5)+(1*3)=143
143 % 10 = 3
So 1045770-53-3 is a valid CAS Registry Number.

1045770-53-3Downstream Products

1045770-53-3Relevant articles and documents

Quaternary stereogenic carbon atoms in complex molecules by an asymmetric, organocatalytic, triple-cascade reaction

Penon, Oriol,Carlone, Armando,Mazzanti, Andrea,Locatelli, Manuela,Sambri, Letizia,Bartoli, Giuseppe,Melchiorre, Paolo

supporting information; experimental part, p. 4788 - 4791 (2009/05/07)

A study was conducted to prepare quaternary stereogenic carbon atoms in complex molecules by using an asymmetric, organocatalytic, and triple-cascade reaction. It was observed that an organocatalytic triple-cascade reaction can be used for direct and one-pot synthesis of tri- and tetra-substituted cyclohexene carbaldehydes with stereogenic carbon atoms. The study used synthetic cascade reaction to avoids time consuming and costly protection/de-protection, isolation procedures of intermediates is environmentally friendly, robust, and nontoxic organocatalysts. The study found that the chiral secondary amines can be used in cascade catalysis due possibility to integrate orthogonal activation modes of carbonyl compounds. The study can be used to prepare cyclohexene carbaldehydes with stereogenic carbon atoms with high diastereomeric and enantiomeric control.

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