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115609-04-6

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115609-04-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 115609-04-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,6,0 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 115609-04:
(8*1)+(7*1)+(6*5)+(5*6)+(4*0)+(3*9)+(2*0)+(1*4)=106
106 % 10 = 6
So 115609-04-6 is a valid CAS Registry Number.

115609-04-6Relevant articles and documents

Organic photochromic dyes and their use for dye-sensitized solar cells

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Paragraph 0222-0227; 0318; 0339-0343, (2020/04/21)

The present invention concerns an organic dye comprising a photochromic entity, a segment -eD representing an electron donor segment and a segment -L-A with -L- representing a covalent bond or a spacer segment and particularly a pi-conjugated spacer segme

Bronsted acid-catalyzed cycloisomerization of but-2-yne-1,4-diols with or without 1,3-dicarbonyl compounds to tri- and tetrasubstituted furans

Mothe, Srinivasa Reddy,Lauw, Sherman Jun Liang,Kothandaraman, Prasath,Chan, Philip Wai Hong

experimental part, p. 6937 - 6947 (2012/10/07)

A Bronsted acid-catalyzed method to prepare tri- and tetrasubstituted furans efficiently from cycloisomerization of but-2-yne-1,4-diols with or without 1,3-dicarbonyl compounds is described. By taking advantage of the orthogonal modes of reactivity of the alcoholic substrate through slight modification of the reaction conditions, a divergence in product selectivity was observed. At room temperature, p-TsOH?H 2O-mediated tandem alkylation/cycloisomerization of the propargylic 1,4-diol with the β-dicarbonyl compound was found to selectively occur to provide the tetrasubstituted furan product. On the other hand, increasing the reaction temperature to 80 °C was discovered to result in preferential p-TsOH?H2O-catalyzed dehydrative rearrangement of the unsaturated alcohol and formation of the 2,3,5-trisubstituted furan adduct.

AMINO ALCOHOLS OF THE ACETYLENE SERIES. X. 1-PHENYL-1-SUBSTITUTED ARYL(HETARYL)-4-DIALKYLAMINO-2-BUTYN-1-OLS

Libman, N. M.,Kuznetsov, S. G.,Loktionov, S. I.

, p. 178 - 181 (2007/10/02)

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