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67210-34-8

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67210-34-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67210-34-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,2,1 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 67210-34:
(7*6)+(6*7)+(5*2)+(4*1)+(3*0)+(2*3)+(1*4)=108
108 % 10 = 8
So 67210-34-8 is a valid CAS Registry Number.

67210-34-8Relevant articles and documents

Solvent-mediated switching between oxidative addition and addition-oxidation: Access to β-hydroxysulfides and β-arylsulfones by the addition of thiols to olefins in the presence of Oxone

Moorthy, Jarugu Narasimha,Payra, Soumen,Yadav, Navin

, p. 582 - 591 (2022/01/22)

The reaction between aryl olefins and thiols in the presence of Oxone in toluene-water (9:1, v/v) affords β-hydroxy-2-arylethyl aryl sulfides smoothly by the interception of intermediary thiyl radicals with aryl olefins; the former are generated by the ox

Synthesis and application of Cu(II) immobilized MCM-41 based solid Lewis acid catalyst for aminolysis reaction under solvent-free condition

Chaudhary, Garima,Gupta, Neha,Singh, Amit Pratap

supporting information, (2021/07/22)

In this paper, a Cu(II) immobilized periodic mesoporous organosilica (PMOs) was synthesized and used as a reusable solid Lewis acid catalyst for the aminolysis of epoxides under solvent-free conditions. An amide-based ligand, L-propylsilyl (1) having a specific binding pocket was prepared and fabricated on mesoporous MCM-41 to produce mesoporous organosilica L-propylsilyl@MCM-41 (2). Further, it has been utilized for anchoring Cu(II) ions under controlled reaction conditions to yield solid Lewis acid catalyst Cu(II)-L-propylsilyl@MCM-41 (3). The synthesized catalyst 3 exhibits significantly higher catalytic activity for aminolysis compared to hitherto known solid Lewis acid catalysts. An extensive range of β-amino alcohols with high regio and stereoselectivity were prepared by using catalyst 3. The catalyst was recovered easily and reused eight times without any loss in its catalytic activity. Furthermore, the synthesis of clinically significant propranolol (β-blocker) from α- naphthyl glycidyl ether was attained successfully using catalyst 3 in a very decent yield.

Air-Induced Disulfenylation of Alkenes: Facile Synthesis of Vicinal Dithioethers

Chen, Danyao,Chen, Qian,Huang, Yuanting,Ou, Yingcong,Yan, Y.,Yu, Guodian

, p. 83 - 86 (2019/12/30)

A novel disulfenylation of alkenes with thiophenols and their corresponding disulfides by using air as the oxidant has been achieved. This transformation provides a facile and practical protocol for the synthesis of vicinal dithioethers under mild conditions.

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