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A General Synthetic Route to Dibenzospiropyrans and Dinaphthospiropyrans from Dibenzofuran and Dinaphthofuran.

โœ Scribed by Bin Wang; Minxiong Li; Shansheng Xu; Haibin Song; Baiquan Wang


Publisher
John Wiley and Sons
Year
2007
Weight
23 KB
Volume
38
Category
Article
ISSN
0931-7597

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A general synthetic route to 3,9-dialkyl
โœ Tozo Fujii; Tohru Saito; Mitsuru Kawanishi ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 305 KB

adenines (type VII) are among the eleven possible NX , NY-disubstituted adenine isomers, and they have been prepared as cyclic derivatives, '-' N 6, N '-dialkyl derivatives, 2'5-8 or an N 6-monomethylated derivative. ' It was not until in relatively recent years, however, that their