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19755-32-9

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19755-32-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19755-32-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,5 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19755-32:
(7*1)+(6*9)+(5*7)+(4*5)+(3*5)+(2*3)+(1*2)=139
139 % 10 = 9
So 19755-32-9 is a valid CAS Registry Number.

19755-32-9Downstream Products

19755-32-9Relevant articles and documents

A convenient one-pot synthesis of 1,2-azaphospholanium salts

Aladzheva, Inga M.,Lobanov, Dmitrii I.,Bykhovskaya, Ol'ga V.,Petrovskii, Pavel V.,Lyssenko, Konstantin A.,Mastryukova, Tatyana A.

, p. 596 - 602 (2003)

A novel facile one-pot synthesis of the 1,2-azaphospholanes by intramolecular alkylation of 3-halopropyl amides of tricoordinate phosphorus has been suggested. Using this method, a series of the differently N-substituted 1,2-azaphospholanium salts were sy

Photoinduced hydrophosphinylation of alkenes with diphenylphosphine oxide

Kawaguchi, Shin-ichi,Nomoto, Akihiro,Sonoda, Motohiro,Ogawa, Akiya

scheme or table, p. 624 - 626 (2011/02/28)

Photoinduced hydrophosphinylation of alkenes with diphenylphosphine oxide took place regioselectively affording the corresponding phosphine oxide in good yields. This hydrophosphinylation is of simple operation and widely tolerant to a variety of the functionalities.

Asymmetric Michael addition catalyzed by D-glucose-based azacrown ethers

Novák,Tatai,Bakó,Czugler,Keglevich,Toke

, p. 424 - 426 (2007/10/03)

Novel sugar-based azacrown ethers with phosphinoxido-alkyl side chain (2a-e) have been synthesized. They show significant asymmetric induction as phase transfer catalysts in the Michael addition of 2-nitropropane to chalcone (95% ee) and to 3-fur-2-yl-1-phenyl-propenone (80% ee).

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