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131757-87-4

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131757-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131757-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,7,5 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131757-87:
(8*1)+(7*3)+(6*1)+(5*7)+(4*5)+(3*7)+(2*8)+(1*7)=134
134 % 10 = 4
So 131757-87-4 is a valid CAS Registry Number.

131757-87-4Downstream Products

131757-87-4Relevant articles and documents

Photoredox Cross-Coupling: Ir/Ni Dual Catalysis for the Synthesis of Benzylic Ethers

Karakaya, Idris,Primer, David N.,Molander, Gary A.

, p. 3294 - 3297 (2015)

Single-electron transmetalation has emerged as an enabling paradigm for the cross-coupling of Csp3 hybridized organotrifluoroborates. Cross-coupling of α-alkoxymethyltrifluoroborates with aryl and heteroaryl bromides has been demonstrated by employing dual catalysis with a combination of an iridium photoredox catalyst and a Ni cross-coupling catalyst. The resulting method enables the alkoxymethylation of diverse (hetero)arenes under mild, room-temperature conditions. (Chemical Equation Presented).

Synthesis of Per-O-alkylated 5-Thio-D-glucono-1,5-lactones and Transannular Participation of the Ring Sulphur Atom of 5-Thio-D-glucose Derivatives on Solvolysis under Acidic Conditions

Yuasa, Hideya,Tamura, Jun-ichi,Hashimoto, Hironobu

, p. 2763 - 2769 (2007/10/02)

Per-O-alkylated 5-thio-D-glucono-1,5-lactones (33)-(35) were synthesized via acetolysis or hydrolysis of the corresponding methyl glycosides (21)-(23).Transannular participation of the sulphur atom on acid methanolysis of 3,6-di-O-acetyl-5-S-acetyl-1,2-O-

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