Number | Date | Country | Kind |
---|---|---|---|
1797/89 | May 1989 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3136620 | Bucha et al. | Jun 1964 | |
4013445 | Bellus et al. | Mar 1977 |
Entry |
---|
Chemical Abstracts, vol. 109, No. 21, Abstract 190239Z, Nov. 24, 1988, p. 695. |
Lowry et al, An Introduction to Organic Chemistry, 1951, p. 215. |