104938-40-1

Basic information

• Product Name: 1-Methyl-3-triphenylphosphoranylidenamino-pyrazinium-iodid
• CAS NO: 104938-40-1
• Molecular Weight: 497.318
• Mol File: 104938-40-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-Methyl-3-triphenylphosphoranylidenamino-pyrazinium-iodid(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Methyl-3-triphenylphosphoranylidenamino-pyrazinium-iodid(104938-40-1)
• EPA Substance Registry System: 1-Methyl-3-triphenylphosphoranylidenamino-pyrazinium-iodid(104938-40-1)

Safety Data

• Hazardous Substances Data: 104938-40-1(Hazardous Substances Data)

Upstream product

• 69982-02-1 1,1,1-triphenyl-N-(pyrazin-2-yl)-λ⁵-phosphanimine 
• 74-88-4 methyl iodide 

Relevant articles and documents

31P-N.M.R. Investigation and Alkylation of N-Hetaryl-triphenylphosphanimides: Estimation of ?--Constants for Several N-Ring Systems from the 31P Chemical Shifts

On the basis of a Hammett-like relationship we have used the 31P chemical shifts of N-hetaryl-triphenylphosphanimides 2 to estimate ?--constants resp. ?--differences of several N-heteroaromatic rings.The electron-withdrawing influence of these rings on the P chemical shift is additionally increased by a short-range electrical field and magnetic anisotropy effect respectively in case the phosphazene group is linked with the α-position of the hetarene.If one aza substituent is neighbouring to the detector group, this through space effect leads to a downfield shift of about 7 ppm.All compounds are alkylated with methyliodide at the ring N atoms and give the quaternary salts 3.The pyridine-N-oxide derivative 2n exists in the open-chain form and reacts with methyliodide at the O atom.