参考文献

Purygin, P. P.; Pan'kov, S. V.; Belyakova, N. A. Russian Journal of Organic Chemistry, 1999 , vol. 35, # 3 p. 474 - 474 Zhurnal Organicheskoi Khimii, 1999 , vol. 35, # 3 p. 496 - 496