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1120500-34-6

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1120500-34-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1120500-34-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,0,5,0 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1120500-34:
(9*1)+(8*1)+(7*2)+(6*0)+(5*5)+(4*0)+(3*0)+(2*3)+(1*4)=66
66 % 10 = 6
So 1120500-34-6 is a valid CAS Registry Number.

1120500-34-6Relevant articles and documents

Novel, Chiral, and Enantiopure C2-Symmetric Thioureas Promote Asymmetric Protio-Pictet-Spengler Reactions by Anion-Binding Catalysis

Retini, Michele,Bartoccini, Francesca,Zappia, Giovanni,Piersanti, Giovanni

supporting information, p. 825 - 829 (2021/02/01)

Although anion-binding processes are well-known for their crucial role in molecular recognition, they have only recently been utilized for catalysis. Herein, a new class of chiral, enantiopure C2-symmetrical thioureas that, in combination with 4-methoxybenzoic acid, promotes the enantioselective protio-Pictet-Spengler reaction to provide unprotected tetrahydro-β-carbolines in good yields (40–93 %) and moderate-to-high enantioselectivities (34–95 % ee) in one step from tryptamine and aldehyde derivatives is described. The formation of a chiral catalyst-anion complex was explored by 1H NMR.

Weak Bronsted acid-thiourea co-catalysis: Enantioselective, catalytic protio-pictet-spengler reactions

Klausen, Rebekka S.,Jacobsen, Eric N.

supporting information; experimental part, p. 887 - 890 (2009/07/25)

The development of one-pot imine formation and asymmetric Pictet-Spengler reactions cocatalyzed by a chiral thiourea and benzoic acid is described. Optically active tetrahydro-β-carbolines, ubiquitous structural motifs in biologically active natural produ

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