Number | Date | Country | Kind |
---|---|---|---|
1920/91 | Jun 1991 | CHX |
Number | Date | Country |
---|---|---|
0350237 | Jan 1990 | EPX |
3012193 | Oct 1980 | DEX |
3106598 | Dec 1981 | DEX |
642611 | Apr 1984 | CHX |
Entry |
---|
Methods of Organic Chemistry, Houben-Weyl, 4th Ed., vol. X/3, (1965), pp. 12 to 64. |