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58143-70-7

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58143-70-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 58143-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,1,4 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 58143-70:
(7*5)+(6*8)+(5*1)+(4*4)+(3*3)+(2*7)+(1*0)=127
127 % 10 = 7
So 58143-70-7 is a valid CAS Registry Number.

58143-70-7Relevant articles and documents

Lanthanide-Catalyzed Tandem Addition of Amines to Cyanoalkenes: Synthesis of Cyclic Amidines

Hou, Jinsong,Yang, Gaosheng,Chai, Zhuo

supporting information, p. 453 - 463 (2022/01/04)

A tandem insertion of aliphatic nitriles and unactivated alkenes to the N-H bond of secondary aliphatic amines catalyzed by simple trialkyl rare-earth metal complexes was disclosed. This reaction provides a highly atom-economic and stereoselective way to a range of cyclic amidines under mild reaction conditions.

A new synthesis of pyrrolidines by way of an enantioselective Mannich/diastereoselective hydroamination reaction sequence

Baxter Vu, Jenny M.,Leighton, James L.

supporting information; experimental part, p. 4056 - 4059 (2011/09/21)

A new two-step synthesis of highly substituted pyrrolidines has been developed. Chiral silane Lewis acid promoted enantioselective Mannich reactions of silyl ketene imines with acylhydrazones may be used to access bishomoallylic benzoic hydrazides that in

Alkyliron and Alkylcobalt Reagents, IV.- High Superiority of Me4CoLi2 and Me4FeLi2 in Comparison to Me2CuLi and Me4MnLi2 in Cross Coupling Reactions with Vinyl Bromides

Kauffmann, Thomas,Stach, Dirk

, p. 913 - 922 (2007/10/02)

The complexes Me4MLi2 (M = Co, Fe, Mn) and Me2CuLi (prepared in situ, but well-known in isolated form) were treated with a series of vinyl bromides.In nearly all cases Me4CoLi2 and Me4FeLi2 proved to by far the best methylating reagents (high yields, reaction at -78 deg C, short reaction time, no excess of the reagent necessary.These reagents will tolerate a hydroxy or cyano group in the substrate, whereas the classical reagent for methylation of vinyl bromides, Me2CuLi, is strongly inhibited by these groups.With the methylation of hydroxyvinyl bromides a new method was found for the synthesis of allyl alcohols. Key Words: Organocobalt complexes / Organoiron complexes

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