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1233656-18-2

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1233656-18-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1233656-18-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,6,5 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1233656-18:
(9*1)+(8*2)+(7*3)+(6*3)+(5*6)+(4*5)+(3*6)+(2*1)+(1*8)=142
142 % 10 = 2
So 1233656-18-2 is a valid CAS Registry Number.

1233656-18-2Relevant academic research and scientific papers

Silica-Supported Oligomeric Benzyl Phosphate (Si-OBP) and Triazole Phosphate (Si-OTP) Alkylating Reagents

Maity, Pradip K.,Faisal, Saqib,Rolfe, Alan,Stoianova, Diana,Hanson, Paul R.

, p. 9942 - 9950 (2015/11/03)

The syntheses of silica-supported oligomeric benzyl phosphates (Si-OBPn) and triazole phosphates (Si-OTPn) using ring-opening metathesis polymerization (ROMP) for use as efficient alkylating reagents is reported. Ease of synthesis and grafting onto the surface of norbornenyl-tagged (Nb-tagged) silica particles has been demonstrated for benzyl phosphate and triazole phosphate monomers. It is shown that these silica polymer hybrid reagents, Si-OBPn and Si-OTPn, can be used to carry out alkylation reactions with an array of different nucleophiles to afford the corresponding benzylated and (triazolyl)methylated products in good yield and high purity.

ROMP-derived oligomeric phosphates for application in facile benzylation

Long, Toby R.,Maity, Pradip K.,Samarakoon, Thiwanka B.,Hanson, Paul R.

supporting information; experimental part, p. 2904 - 2907 (2010/09/30)

The development of new ROMP-based oligomeric benzyl phosphates (OBP n) is reported for use as soluble, stable benzylating reagents. These oligomeric reagents are readily synthesized from commercially available materials and conveniently polymerized and purified in a one-pot process, affording bench-stable, pure white, free-flowing solids on multigram scale. Utilization in benzylation reactions with a variety of nucleophiles is reported.

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