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1238182-64-3

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1238182-64-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238182-64-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,1,8 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1238182-64:
(9*1)+(8*2)+(7*3)+(6*8)+(5*1)+(4*8)+(3*2)+(2*6)+(1*4)=153
153 % 10 = 3
So 1238182-64-3 is a valid CAS Registry Number.

1238182-64-3Upstream product

1238182-64-3Downstream Products

1238182-64-3Relevant academic research and scientific papers

Synthesis of 1,7-dioxaspiro[5.5]undecanes and 1 -oxa-7-thiaspiro[5.5] undecanes from exo-glycal

Lin, Hui-Chang,Chen, Yen-Bo,Lil, Zi-Ping,Wong, Fung Fuh,Lin, Chun-Hung,Lin, Shao-Kai

, p. 5229 - 5234 (2010)

A new spirocyclization was developed for the synthesis of 1,7-dioxaspiro[55]undecanes and 1-oxa-7-thiaspiro[55]undecanes by reaction of exo-glycal with awl alcohols or thiophenols in the presence of Lewis acid BF3·OEt2. The reaction proceeded through tandem Ferrier rearrangement, glycosylation, and FriedelCrafts alkylation to provide the corresponding products in good to excellent yields.

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