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53323-72-1

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53323-72-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53323-72-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,3,2 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 53323-72:
(7*5)+(6*3)+(5*3)+(4*2)+(3*3)+(2*7)+(1*2)=101
101 % 10 = 1
So 53323-72-1 is a valid CAS Registry Number.

53323-72-1Upstream product

53323-72-1Relevant articles and documents

Formation of phosphorus heterocycles using a cationic electrophilic phosphinidene complex

Vaheesar, Kandasamy,Kuntz, Colin M.,Sterenberg, Brian T.

, p. 347 - 355 (2013)

The electrophilic terminal aminophosphinidene complex [CpFe(CO) 2P{N-i-Pr2}][X] (Cp = cyclopentadienyl, i-Pr = isopropyl, X = AlCl4 or NaBPh4), generated from [CpFe(CO) 2{P(Cl)N-i-Pr2}] by chloride abstraction, reacts with alkynes and alkenes via (1 + 2) cycloaddition to form phosphirenes and phosphiranes respectively. Conjugated alkenes react with [CpFe(CO) 2P{N-i-Pr2}]+ to form phosphirane intermediates, which then rearrange to 3-phospholenes. The phosphinidene complex reacts with benzylideneacetone to give an oxo-3-phospholene complex. Azobenzene reacts with [CpFe(CO)2P{N-i-Pr2}]+ to form a benzodiazophosphole via C-H activation. Addition of HCl or HBF 4·Et2O to the iron diphenylphosphirene complex and iron benzodiazophosphole complex results in P-N bond cleavage, yielding the respective chlorophosphorus heterocyclic complexes. The heterocycles can be removed from the metal complexes to make metal free phosphorus heterocycles by addition of trimethyl- or triethylphosphine.

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