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1075721-62-8

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1075721-62-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1075721-62-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,5,7,2 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1075721-62:
(9*1)+(8*0)+(7*7)+(6*5)+(5*7)+(4*2)+(3*1)+(2*6)+(1*2)=148
148 % 10 = 8
So 1075721-62-8 is a valid CAS Registry Number.

1075721-62-8Downstream Products

1075721-62-8Relevant articles and documents

Diaminomethylenemalononitrile as a Chiral Single Hydrogen Bond Catalyst: Application to Enantioselective Conjugate Addition of α-Branched Aldehydes

Akutsu, Hiroshi,Hirashima, Shin-ichi,Kawada, Masahiro,Matsumoto, Takashi,Miura, Tsuyoshi,Nakashima, Kosuke,Tsuyusaki, Ryo,Yanai, Hikaru

supporting information, p. 2272 - 2275 (2021/07/16)

An improved diaminomethylenemalononitrile organocatalyst, bearing a N,N-disubstituted structure, promoted enantioselective conjugate addition reaction of α-branched aldehydes with vinyl sulfone, affording adducts with excellent enantioselectivities (up to 96% ee). Mechanistic studies revealed that the diaminomethylenemalononitrile motif holds the vinyl sulfone substrate using a single hydrogen bond accompanied by multiple weak interactions, including electrostatic C?H???O interactions.

Perfluoroalkanesulfonamide organocatalysts for asymmetric conjugate additions of branched aldehydes to vinyl sulfones

Nakashima, Kosuke,Murahashi, Miho,Yuasa, Hiroki,Ina, Mariko,Norihiro, Tada,Itoh, Akichika,Hirashima, Shin-Ichi,Koseki, Yuji,Miura, Tsuyoshi

, p. 14529 - 14542 (2014/01/17)

Asymmetric conjugate additions of branched aldehydes to vinyl sulfones promoted by sulfonamide organocatalyst 6 or 7 have been developed, allowing facile synthesis of the corresponding adducts with all-carbon quaternary stereocenters in excellent yields w

Aminal-pyrrolidine organocatalysts - Highly efficient and modular catalysts for α-functionalization of carbonyl compounds

Quintard, Adrien,Belot, Sebastien,Marchai, Estelle,Alexakis, Alexandre

experimental part, p. 927 - 936 (2010/04/25)

The substitution of the 4-position of hydroxyproline by a phenol group, together with an aminal on the 2-position, gave a synergistic effect leading to two powerful complementary organocatalysts. They show excellent enantiocontrol in the α-functionalization of a wide range of linear/ branched aldehydes and ketones, including Michael additions to ethenediyl disulfones or nitrostyrene and α-amination. We obtained ees up to 98.5 % with low catalyst loadings (down to 1 mol-%). As a proof of efficiency, TOFs of up to 1000 h-1 could be obtained.

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