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2-Phenyl-1,3-propandiol-di-p-toluolsulfonsaeureester, also known as 2-phenyl-1,3-propanediol bis(p-toluenesulfonate), is a chemical compound with the molecular formula C20H22O6S2. It is a white crystalline solid that is soluble in organic solvents such as ethanol and acetone. 2-Phenyl-1,3-propandiol-di-p-toluolsulfonsaeureester is derived from 2-phenyl-1,3-propanediol, a chiral diol, and p-toluenesulfonic acid, a strong acid. The diol is reacted with p-toluenesulfonic acid to form the bis(p-toluenesulfonate) ester, which is used as a protecting group in organic synthesis, particularly in the preparation of complex molecules where the hydroxyl groups need to be temporarily masked. The compound is also of interest in the field of asymmetric synthesis due to its potential applications in the development of chiral catalysts and ligands.

1570-96-3

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1570-96-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1570-96-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,7 and 0 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1570-96:
(6*1)+(5*5)+(4*7)+(3*0)+(2*9)+(1*6)=83
83 % 10 = 3
So 1570-96-3 is a valid CAS Registry Number.

1570-96-3Relevant academic research and scientific papers

Facile deprotection of dithioacetals by using a novel 1,4-benzoquinone/cat. NaI system

Inamoto, Kiyofumi,Yamada, Tetsuya,Kato, Sei-Ichi,Kikkawa, Shoko,Kondo, Yoshinori

, p. 9192 - 9199 (2013/10/01)

The combination of 1,4-benzoquinone and a catalytic amount of NaI was found to be effective for the deprotection of dithioacetals. The reactions proceeded efficiently under mild, near-neutral reaction conditions, producing a wide range of aryl and alkyl aldehydes and ketones generally in high yields with good functional group compatibility. The method developed therefore represents a general, facile, and highly applicable approach for deprotecting dithioacetals.

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