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13307-56-7

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13307-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13307-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,0 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 13307-56:
(7*1)+(6*3)+(5*3)+(4*0)+(3*7)+(2*5)+(1*6)=77
77 % 10 = 7
So 13307-56-7 is a valid CAS Registry Number.

13307-56-7Relevant articles and documents

Catalyst-dependent selective synthesis of O/S- and S/S-acetals from enol ethers

Braga,Silveira,Dornelles,Zeni,Galarza,Wessjohann

, p. 3155 - 3162 (1995)

Enol ethers are reacted with mercaptanes to give the corresponding O/S- or S/S-acetals in medium to high yield. Either product can be formed selectively depending on the acid catalyst and the reaction time applied.

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Oae,S. et al.

, p. 5283 - 5291 (1968)

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Synthesis of dithioacetals and oxathioacetals with chiral auxiliaries

Zaidi, Javid H.,Naeem, Fazal,Khan, Khalid M.,Iqbal, Rasfaid,Zia-Ullah

, p. 2641 - 2653 (2007/10/03)

One-pot synthesis of dithioacetals as well as an efficient method for oxathioacetal is reported. Additionally, some chiral auxiliaries were used to synthesize enantiomerically pure dithioacetals and oxathioacetals.

Aggregative activation and carbanion chemistry: Complex base deprotonation and directed functionalisation of dithioacetals

Gros, Philippe,Hansen, Philippe,Caubere, Paul

, p. 15147 - 15156 (2007/10/03)

Bis(phenylthio)methane and [1,3]-dithiane were efficiently deprotonated by the NaNH2-Et(OCH2CH2)2-ONa complex base. A marked behaviour difference was observed between the sodium carbanion of [1,3]-dithiane and the corresponding lithio-derivative. A 'radicaloid' mechanism is proposed to explain the results observed.

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