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154558-90-4

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154558-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 154558-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,5,5 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 154558-90:
(8*1)+(7*5)+(6*4)+(5*5)+(4*5)+(3*8)+(2*9)+(1*0)=154
154 % 10 = 4
So 154558-90-4 is a valid CAS Registry Number.

154558-90-4Relevant articles and documents

Green and highly efficient synthesis of 2-arylbenzothiazoles using glycerol without catalyst at ambient temperature

Sadek, Kamal Usef,Mekheimer, Ramadan Ahmed,Hameed, Afaf Mohamed Abdel,Elnahas, Fatma,Elnagdi, Mohamed Hilmy

, p. 6011 - 6019 (2012)

A one-pot and clean synthesis of 2-arylbenzothiazoles via the ambient temperature reaction of 2-aminothiophenols and aromatic aldehydes without catalyst in glycerol as a green solvent has been reported. 2012 by the Authors.

Room temperature HFIP/Ag-promoted palladium-catalyzed C–H functionalization of benzothiazole with iodoarenes

Bhujbal, Yuvraj,Gharpure, Santosh J.,Kapdi, Anant R.,Kommyreddy, Saidurga Prasad,Kori, Santosh,Vadagaonkar, Kamlesh

supporting information, p. 847 - 850 (2022/02/01)

A versatile synthetic protocol involving the room temperature direct arylation of benzothiazole with a wide variety of iodoarenes under Ag-promoted Pd-catalyzed conditions in HFIP as the reaction solvent has been presented. A sequential HFIP-promoted sele

Organocatalytic syntheses of benzoxazoles and benzothiazoles using aryl iodide and oxone via C-H functionalization and C-O/S bond formation

Alla, Santhosh Kumar,Sadhu, Pradeep,Punniyamurthy, Tharmalingam

, p. 7502 - 7511 (2014/09/16)

An organocatalytic protocol for the syntheses of 2-substituted benzoxazoles and benzothiazoles is described from alkyl-/arylanilides and alkyl-/arylthioanilides using 1-iodo-4-nitrobenzene as catalyst and oxone as an inexpensive and environmentally safe terminal oxidant at room temperature in air via oxidative C-H functionalization and C-O/S bond formation. The procedure is simple and general and provides an effective route for the construction of functionalized 2-alkyl-/arylbenzoxazoles and 2-alkyl-/arylbenzothiazoles with moderate to high yields. The synthetic and mechanistic aspects have been described.

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