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77609-09-7

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77609-09-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77609-09-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,0 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77609-09:
(7*7)+(6*7)+(5*6)+(4*0)+(3*9)+(2*0)+(1*9)=157
157 % 10 = 7
So 77609-09-7 is a valid CAS Registry Number.

77609-09-7Relevant articles and documents

Cu(II)-Promoted Cascade Synthesis of Fused Imidazo-Pyridine-Carbonitriles

Rakshit, Amitava,Dhara, Hirendra Nath,Alam, Tipu,Dahiya, Anjali,Patel, Bhisma K.

supporting information, p. 17504 - 17510 (2021/11/18)

A Cu(II)-promoted synthesis of an aza-fused N-heterocycle having a benz-imidazopyridine scaffold is developed via an addition-cyclization reaction followed by an Ullmann-type C-N coupling between o-iodoanilines and γ-ketodinitriles. This protocol features a broad substrate scope, giving products in 32-84% yields. The compounds show excellent photoluminescence properties having two absorption maxima in the region between 270-280 and 338-350 nm and emission maxima in the range of 502-533 nm. The HOMO-LUMO energy gap of 3.49-3.57 eV was determined using Gaussian 09 at the B3LYP/6-31G (d, p) basis set level. We also demonstrated a few postsynthetic modifications.

One-Pot Quinine-Catalyzed Synthesis of α-Chiral γ-Keto Esters: Enantioenriched Precursors of cis-α,γ-Substituted-γ-Butyrolactones

Meninno, Sara,Volpe, Chiara,Lattanzi, Alessandra

supporting information, p. 2845 - 2848 (2016/09/13)

A highly enantioselective one-pot synthesis of important building blocks, α-chiral γ-keto esters, has been developed by combining a quinine-catalyzed Michael addition of malononitrile to trans-enones followed by magnesium monoperoxyphthalate (MMPP) oxidat

Quinine catalysed asymmetric Michael additions in a sustainable solvent

Castro-Osma, Jos A.,Comerford, James W.,Heath, Samantha,Jones, Oliver,Morcillo, Maria,North, Michael

, p. 3678 - 3685 (2015/02/03)

Diethyl carbonate is shown to be a suitable, sustainable solvent in which to carry out quinine catalysed asymmetric Michael additions of malononitriles to enones. Both malonitrile and α-substituted malononitriles can be used as substrate and the results suggest that π-π stacking interactions between the (hetero)aromatic rings of the catalyst and substrates are important in determining the degree of asymmetric induction.

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