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78426-31-0

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78426-31-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78426-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,2 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78426-31:
(7*7)+(6*8)+(5*4)+(4*2)+(3*6)+(2*3)+(1*1)=150
150 % 10 = 0
So 78426-31-0 is a valid CAS Registry Number.

78426-31-0Downstream Products

78426-31-0Relevant articles and documents

Nucleophilic displacement of homoallylic tosylates: Influence of steric hindrance and conformational rigidity

Fernández-Mateos,Rentzsch,Rodríguez Sánchez,Rubio González

, p. 4873 - 4879 (2001)

A comparative study on the nucleophilic displacement of homoallylic tosylates with different degrees of hindrance and rigidity is reported. π Bond participation is favoured by hindrance and rigidity, and also by weak nucleophiles such as water or dimethylformamide.

Formaldehyde Encapsulated in Zeolite: A Long-Lived, Highly Activated One-Carbon Electrophile to Carbonyl-Ene Reactions

Okachi, Takahiro,Onaka, Makoto

, p. 2306 - 2307 (2007/10/03)

Gaseous formaldehyde is extremely unstable and readily undergoes self-polymerization to a solid paraformaldehyde or disproportionation to methanol and formic acid in the presence of moisture. We disclose a simple method to stably store such a labile formaldehyde as a monomer in a nanoporous faujasite zeolite at 5 °C for at least 50 days without self-polymerization or disproportionation. The greater stability of formaldehyde encapsulated in zeolite was confirmed by 13C MAS NMR spectroscopy. Formaldehyde was not only stabilized within the zeolite cages but functioned as a powerful electrophile toward various olefins. Zeolite-encapsulated formaldehyde was proved to be a stable but highly reactive C1 reagent. Copyright

DIMETHYLALUMINUM CHLORIDE CATALYZED ENE REACTIONS OF ALDEHYDES.

Snider,Rodini,Kirk,Cordova

, p. 555 - 563 (2007/10/02)

Dimethylaluminum chloride, which is a mild Lewis acid and a proton scavenger, catalyzes the ene reactions of aliphatic and aromatic aldehydes with alkenes containing a disubstituted vinylic carbon. Proton-initiated rearrangements do not occur, since the alcohol-Lewis acid complex formed in the ene reaction reacts rapidly to give methane and a nonacidic aluminum alkoxide. Formaldehyde and excess Me//2AlCl give good yields of ene adducts with all types of alkenes. With 1 equiv of Me//2AlCl, formaldehyde and mono- and 1,2-disubstituted alkenes give gamma -chloro alcohols resulting from cis addition of chlorine and hydroxymethyl groups to the double bond. This work is pertinent to the synthesis of alcohols.

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