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92721-41-0

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92721-41-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92721-41-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,7,2 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 92721-41:
(7*9)+(6*2)+(5*7)+(4*2)+(3*1)+(2*4)+(1*1)=130
130 % 10 = 0
So 92721-41-0 is a valid CAS Registry Number.

92721-41-0Downstream Products

92721-41-0Relevant articles and documents

Pyrrolizidinone and Indolizidinone Synthesis: Generation and Intramolecular Addition of α-Acylamino Radicals to Olefins and Allenes

Burnett, Duane A.,Choi, Joong-Kwon,Hart, David J.,Tsai, Yeun-Min

, p. 8201 - 8209 (2007/10/02)

α-Acylamino radicals can be generated by treatment of phenylthio, methylthio, or phenylselenyl lactams of type 7, 8, and 17 with tri-n-butyltin hydride in the presence of AIBN.The radicals add intramolecularly to olefins and allenes to give indolizidinones and pyrrolizidinones.The product distribution depends on the substitution patterns of the unsaturated moiety and the legnth of the chain connecting the radical and olefinic centers.Product ratios appear to reflect the kinetic partitioning of the radical between cyclization pathways.These reactions are potentially useful in the area of pyrrolizidine alkaloid synthesis.The conversion of cyclization produts 50 and 51 to (+/-)-supinidine (1) serves as an example.

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