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1450894-33-3

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1450894-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1450894-33-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,5,0,8,9 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1450894-33:
(9*1)+(8*4)+(7*5)+(6*0)+(5*8)+(4*9)+(3*4)+(2*3)+(1*3)=173
173 % 10 = 3
So 1450894-33-3 is a valid CAS Registry Number.

1450894-33-3Downstream Products

1450894-33-3Relevant articles and documents

Cooperative Catalysis for the Highly Diastereo- and Enantioselective [4+3]-Cycloannulation of ortho-Quinone Methides and Carbonyl Ylides

Loui, Henning Jakob,Schneider, Christoph,Suneja, Arun

, p. 5536 - 5540 (2020)

We describe herein a highly diastereo- and enantioselective [4+3]-cycloannulation of ortho-quinone methides and carbonyl ylides to furnish functionalized oxa-bridged dibenzooxacines with excellent yields and stereoselectivity in a single synthetic step. The combination of rhodium and chiral phosphoric acid catalysis working in concert to generate both transient intermediates in situ provides direct access to complex bicyclic products with two quaternary and one tertiary stereogenic centers. The products may be further functionalized into valuable and enantiomerically highly enriched building blocks.

A novel and convenient strategy for the synthesis of phthalazines from an aryne precursor

Bel Abed, Hassen,Bande, Omprakash,Mammoliti, Oscar,Van Lommen, Guy,Herdewijn, Piet

supporting information, p. 7056 - 7058 (2013/12/04)

A novel three-step entry toward phthalazine derivatives has been elaborated. A strategy based on a sequential acyl-alkylation/diazo transfer reaction/Diaza-Wittig reaction led to the desired analogues in moderate to good yields from an aryne precursor. Various aryl groups were introduced on the annulated pyridazine, moreover the presence of an ester group allows further modifications.

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