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1004750-59-7

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1004750-59-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1004750-59-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,4,7,5 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1004750-59:
(9*1)+(8*0)+(7*0)+(6*4)+(5*7)+(4*5)+(3*0)+(2*5)+(1*9)=107
107 % 10 = 7
So 1004750-59-7 is a valid CAS Registry Number.

1004750-59-7Downstream Products

1004750-59-7Relevant articles and documents

Catalysis of 3-pyrrolidinecarboxylic acid and related pyrrolidine derivatives in enantioselective anti-Mannich-type reactions: Importance of the 3-acid group on pyrrolidine for stereocontrol

Zhang, Haile,Mitsumori, Susumu,Utsumi, Naoto,Imai, Masanori,Garcia-Delgado, Noemi,Mifsud, Maria,Albertshofer, Klaus,Cheong, Paul Ha-Yeon,Houk,Tanaka, Fujie,Barbas III, Carlos F.

, p. 875 - 886 (2008/09/20)

The development of enantioselective anti-selective Mannich-type reactions of aldehydes and ketones with imines catalyzed by 3-pyrrolidinecarboxylic acid and related pyrrolidine derivatives is reported in detail. Both (3R,5R)-5-methyl-3-pyrrolidinecarboxylic acid and (R)-3-pyrrolidinecarboxylic acid efficiently catalyzed the reactions of aldehydes with α-imino esters under mild conditions and afforded anti-Mannich products with high diastereo- and enantioselectivities (anti/syn up to 99:1, up to >99% ee). For the reactions of ketones with α-imino esters, (R)-3-pyrrolidinecarboxylic acid was an efficient catalyst (anti/syn up to >99:1, up to 99% ee). Evaluation of a series of pyrrolidine-based catalysts indicated that the acid group at the β-position of the pyrrolidine ring of the catalyst played an important role in forwarding the carbon-carbon bond formation and in directing anti-selectivity and enantioselectivity.

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