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1078138-42-7

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1078138-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1078138-42-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,8,1,3 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1078138-42:
(9*1)+(8*0)+(7*7)+(6*8)+(5*1)+(4*3)+(3*8)+(2*4)+(1*2)=157
157 % 10 = 7
So 1078138-42-7 is a valid CAS Registry Number.

1078138-42-7Relevant articles and documents

Highly functionalised (γ-azido/γ-fluoro-β-iodo/)vinyl derivatives from phosphorus based allenes or allenoates: I?O halogen bonding interactions

Anitha, Mandala,Kumara Swamy

, p. 5736 - 5748 (2019/06/18)

Multifunctional γ-azido/γ-fluoro-β-iodo-vinyl phosphine oxides/phosphonates/esters/sulfone were synthesised by iodination followed by azidation/fluorination of phosphorus-based allenes or allenoates (allenyl esters) or a sulphur based allene. Surprisingly, the reaction of (γ,β)-diiodo-vinyl-phosphonate with TBAF [n-Bu4NF] led to the corresponding allenylphosphonate; in contrast, the use of CsF in a similar reaction led to novel γ-diiodo-allenylphosphonate along with the corresponding non-halogenated allenylphosphonate. The combination AgF2/CuBr could be used to obtain the γ-fluoro-β-iodo-vinyl phosphine oxides and related phosphorus-free γ-fluoro-β-iodo-vinyl esters. In many cases, I?O halogen to oxygen non-covalent bonding interactions ('halogen bonding') involving the phosphoryl (PO) oxygen, as evidenced by single crystal X-ray crystallography, are also observed.

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