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66050-98-4

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66050-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66050-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,0,5 and 0 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 66050-98:
(7*6)+(6*6)+(5*0)+(4*5)+(3*0)+(2*9)+(1*8)=124
124 % 10 = 4
So 66050-98-4 is a valid CAS Registry Number.

66050-98-4Relevant articles and documents

Synthesis and Absolute Configuration of Natural 2-Pyrones

Burkhardt, Immo,Dickschat, Jeroen S.

, p. 3144 - 3157 (2018/07/06)

2-Pyrones are frequently produced by microorganisms and often exhibit interesting bioactivities. Therefore, a short and easy synthetic access to these natural products is desirable. Synthetic routes to nectriapyrone, gibepyrone A, racemic gulypyrone A, (+)-germicidin C, (ent)-desoxygermicidin C and (ent)-prolipyrone A via a modular approach are presented, allowing the assignment of the absolute configurations of the latter three chiral compounds. The method failed for the synthesis of (ent)-phomapyrone B that was thus synthesized via a different route, resulting in an assignment of the absolute configuration of natural phomapyrone B.

Advances and Setbacks in the Total Synthesis of the Fungal Metabolite Curvicollide C: Synthesis and Elaboration of Non-Aldol Stereotriads from Gosteli-Type Allyl Vinyl Ethers

K?rner, Marleen,Hiersemann, Martin

, p. 2466 - 2482 (2016/07/28)

Advances and setbacks are reported in regard to the asymmetric total synthesis of the fungal metabolite curvicollide C relying on a synthetic strategy that exploits non-aldol stereotriads as chiral building blocks. A catalytic asymmetric Gosteli-Claisen rearrangement, a two-step aldehyde-to-alkyne-homologation, and a Julia-Kocienski olefination served as key C/C-connecting transformations.

Stereochemical investigations reveal the mechanism of the bacterial activation of n-alkanes without oxygen

Jarling, Rene,Sadeghi, Masih,Drozdowska, Marta,Lahme, Sven,Buckel, Wolfgang,Rabus, Ralf,Widdel, Friedrich,Golding, Bernard T.,Wilkes, Heinz

supporting information; experimental part, p. 1334 - 1338 (2012/03/27)

Anaerobic growth of the bacterium strain HxN1 with n-hexane gives nearly equal amounts of (2R,1 R)- and (2S,1 R)-(1-methylpentyl)succinate, which are formed by the radical addition of the hydrocarbon to fumarate (see scheme). The highly selective attack on the pro-S hydrogen atom at C2 of n-hexane is associated with inversion of the configuration at C2 during binding to fumarate and exhibits isotopic discrimination against a C-2H bond. Copyright

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