190841-68-0 Usage
General Description
1,1-Binaphthalene-2,2-dithiol, 3,3-dimethyl- is a chemical compound with the molecular formula C20H18S2. It is a dithiol, which means it contains two thiol (sulfhydryl) groups. 1,1-Binaphthalene-2,2-dithiol, 3,3-dimethyl- is commonly used in organic synthesis and pharmaceutical research as a chiral ligand and building block. It has asymmetric properties due to its chiral structure, making it useful in the synthesis of various chiral molecules. Additionally, it has been studied for its potential applications in materials science, such as in the development of organic semiconductor materials. However, it is important to handle this compound with care as it can be corrosive and harmful if not used properly.
Check Digit Verification of cas no
The CAS Registry Mumber 190841-68-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,8,4 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 190841-68:
(8*1)+(7*9)+(6*0)+(5*8)+(4*4)+(3*1)+(2*6)+(1*8)=150
150 % 10 = 0
So 190841-68-0 is a valid CAS Registry Number.
190841-68-0Relevant articles and documents
Synthesis of structurally modified atropisomeric biaryl dithiols. Observations on the Newman-Kwart rearrangement
Cossu, Sergio,De Lucchi, Ottorino,Fabbri, Davide,Valle, Giovanni,Painter, Gavin F.,Smith, Robin A.J.
, p. 6073 - 6084 (2007/10/03)
The preparation of a number of biaryldithiols from biaryldiols is discussed. A key reaction is the Newman-Kwart thermorearrangement of bisthiocarbamates and crucial variables of temperature and reaction time have been identified. Alternative approaches to 3,3'-disubstituted dithiols via ortho metallation are presented. The benefit of using such disubstituted compounds is illustrated with representative examples of the stereochemical features of the derived carbanions in reactions with prochiral electrophiles.
