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58107-57-6

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58107-57-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 58107-57-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,1,0 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 58107-57:
(7*5)+(6*8)+(5*1)+(4*0)+(3*7)+(2*5)+(1*7)=126
126 % 10 = 6
So 58107-57-6 is a valid CAS Registry Number.

58107-57-6Relevant articles and documents

Synthesis of Optically Active 2,3-Disubstituted Indoline -Derivatives through Cycloaddition Reactions between Benzynes and α,β-Unsaturated γ-Aminobutyronitriles

Ikawa, Takashi,Sumii, Yuta,Masuda, Shigeaki,Wang, Ding,Emi, Yuto,Takagi, Akira,Akai, Shuji

supporting information, p. 530 - 536 (2018/01/17)

We report a method for synthesizing optically active 2,3-disubstituted indolines by the cycloaddition reaction of benzynes with various 4-[(4-toluenesulfonyl)amino]-(E)-but-2-enenitriles, which are readily prepared from the corresponding l -amino acid der

Flexible stereoselective functionalizations of ketones through umpolung with hypervalent iodine reagents

Mizar, Pushpak,Wirth, Thomas

supporting information, p. 5993 - 5997 (2014/06/10)

The functionalization of carbonyl compounds in the α-position has gathered much attention as a synthetic route because of the wide biological importance of such products. Through polarity reversal, or "umpolung", we show here that typical nucleophiles, such as oxygen, nitrogen, and even carbon nucleophiles, can be used for addition reactions after tethering them to enol ethers. Our findings allow novel retrosynthetic planning and rapid assembly of structures previously accessible only by multistep sequences. A Nu approach: An efficient α-functionalization of ketones with a range of simple and useful nucleophiles is possible by using hypervalent iodine reagents (see scheme; Nu′ can be the Nu itself or a protected form of this nucleophile group).

Diversity-oriented synthesis based on the dppp-catalyzed mixed double-michael reactions of electron-deficient acetylenes and β-amino alcohols

Fan, Yi Chiao,Kwon, Ohyun

scheme or table, p. 3802 - 3825 (2011/06/24)

In this study, we prepared oxizolidines through 1,3-bis(diphenylphosphino)- propane (DPPP)-catalyzed mixed double-Michael reactions of β-amino alcohols with electron-deficient acetylenes. These reactions are very suitable for the diversity-oriented parallel syntheses of oxizolidines because: (i) they are performed under mild metal-free conditions and (ii) the products are isolated without complicated work-up. To demonstrate the applicability of mixed double-Michael reactions for the preparation of five-membered-ring heterocycles, we prepared 60 distinct oxazolidines from five β-amino alcohols and 12 electron-deficient acetylenes. We synthesized 36 of these 60 oxazolidines in enantiomerically pure form from proteinogenic amino acid-derived β-amino alcohols.

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