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[2-Furan-2-yl-4,6-dioxo-5-(triphenyl-λ5-phosphanylidene)-5,6-dihydro-4H-pyran-3-yl]-triphenyl-phosphonium; chloride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74163-33-0

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74163-33-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74163-33-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,6 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74163-33:
(7*7)+(6*4)+(5*1)+(4*6)+(3*3)+(2*3)+(1*3)=120
120 % 10 = 0
So 74163-33-0 is a valid CAS Registry Number.

74163-33-0Relevant academic research and scientific papers

UMSETZUNG VON KETENYLIDEN-TRIPHENYLPHOSPHORAN UND SEINEM DIMEREN MIT SAEURECHLORIDEN

Juergen Bestmann, Hans,Geismann, Christian

, p. 257 - 260 (2007/10/02)

Ketenyliden-triphenylphosphoran (1) und sein Dimeres 6 reagieren mit aromatischen Saeurechloriden zu Pyronen 5.Aliphatische und Araliphatische Saeurechloride 10 liefern die analogen Verbindungen 11 und Bisphosphorane 12, waehrend 6 mit Diphenylessigsaeurechlorid (10c) das Allen 8 ergibt.Aus 1 und Chlorameisensaeuremethylester (14) erhaelt man das Pyryliumbetain 16.Die Salze 5 gehen mit Natriummethylat in die Bisphosphorane 17 ueber, die sich beim Erwaermen in die offenkettigen Strukturen 18 umlagern.

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