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B., Changkuo M. C., Chem. Rev.<\/i>, 62<\/b>, 405-431 (1962).","DOI":"10.1021\/cr60219a002"},{"key":"2","unstructured":"2) Tamayo L. L., Manuel S., Jose L., “1,4-Cycloaddition Reactions,” ed. by Hamer J., Academic Press, New York, London, 1967, pp. 179-204."},{"key":"3","doi-asserted-by":"crossref","unstructured":"3) Pfleger R., Jäger A., Chem. Ber.<\/i>, 90<\/b>, 2460-2470 (1957).","DOI":"10.1002\/cber.19570901107"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4) Sakamoto M., Tomimatsu Y., Yakugaku Zasshi<\/i>, 90<\/b>, 1386-1390 (1970).","DOI":"10.1248\/yakushi1947.90.11_1386"},{"key":"5","doi-asserted-by":"crossref","unstructured":"5) Burpitt R. D., Brannock K. C., Nations R. G., Martin J. C., J. Org. Chem.<\/i>, 36<\/b>, 2222-2225 (1971).","DOI":"10.1021\/jo00815a004"},{"key":"6","doi-asserted-by":"crossref","unstructured":"6) Sakamoto M., Miyazawa K., Ishihara Y., Tomimatsu Y., Chem. Pharm. Bull.<\/i>, 22<\/b>, 1419-1421 (1974).","DOI":"10.1248\/cpb.22.1419"},{"key":"7","unstructured":"7) Tamayo L. L, Farinã F., Anales Real Soc. Españ. Fis. Quim.<\/i>, 48B<\/b>, 89-98 (1952) [Chem. 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