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86977-37-9

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86977-37-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 86977-37-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,9,7 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 86977-37:
(7*8)+(6*6)+(5*9)+(4*7)+(3*7)+(2*3)+(1*7)=199
199 % 10 = 9
So 86977-37-9 is a valid CAS Registry Number.

86977-37-9Downstream Products

86977-37-9Relevant articles and documents

SMALL RING COMPOUNDS-XLI. CYCLOBUTENE CYCLOADDITIONS; SYNTHESIS AND REACTIVITY IN THE BICYCLOHEXAN-2-ONE SERIES

Fadel, A.,Salauen, J.,Conia, J. M.

, p. 1567 - 1574 (1983)

Cyclobutene, prepared by base-induced elimination from tosyloxycyclobutane 19 undergoes cycloaddition with ethyl propiolate in the presence of AlCl3 to provide ethyl bicyclohex-2-ene-2-carboxylate 20.This cycloadduct at room temperature and in the presence of AlCl3 undergoes forbidden ring opening into ethyl cyclohexa-1,3-diene-2-carboxylate 21.The cycloaddition of cyclobutene with dichloroketene provides 3,3-dichlorobicyclohexan-2-one 24 and after reductive halogen removal the endo 3-chloro bicyclohexan-2-one 28 (the first study of this strained system).However, further dechlorination of 28 results in rearrangement and fragmentation reactions.

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