1627917-17-2 Usage
Uses
B-benzo[b]naphtho[2,3-d]furan-2-yl-boronic acid can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.
Synthesis
12.6g of intermediate (A) and 500 mL of tetrahydrofuran (dehydrated) were put in a flask, and the resultant
was cooled to -78°C. 28 mL of n-BuLi (1.60M in hexane) was added, and stirring was conducted for 2 hours while
elevating the temperature to 0°C. Then, the solution was again cooled to -78°C, and 11.6g of B(OMe) 3 was added. After
stirring at 10 minutes at -78°C, stirring was further conducted for 5 hours while gradually elevating the temperature to
room temperature. After completion of the reaction, 1 N HCl aq. (100 mL) was added, and the reaction solution was stirred at room
temperature for 1 hour. Then, the solution was transferred to a separating funnel, and extracted with ethyl acetate. This solution was dried with MgSO 4, concentrated and washed with hexane, whereby 7.2g (yield: 65%) of white
solids of intermediate (B) were obtained.
Check Digit Verification of cas no
The CAS Registry Mumber 1627917-17-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,7,9,1 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1627917-17:
(9*1)+(8*6)+(7*2)+(6*7)+(5*9)+(4*1)+(3*7)+(2*1)+(1*7)=192
192 % 10 = 2
So 1627917-17-2 is a valid CAS Registry Number.
1627917-17-2Relevant articles and documents
Based on pipi and naphthalene benzofuran derivative and its preparation method, applications and devices (by machine translation)
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Paragraph 0061; 0062; 0063, (2017/07/19)
The invention belongs to the field of photoelectric material applied science and technology, and in particular relates to based on pipi and naphthalene benzofuran derivative and its preparation method, applications and devices. The present invention provi
