The reaction o f amnonia-l5N w i t h benzaldehyde i n 50% aq. methanol followed by slow removal o f solve t l e d t o a high y i e l d o f a c r y s t a l l i n e product (benzylimine-r5N). On reduction with sodium cyanoborohydride a good y i e l d o f benzylamine-15N was obtained. The syntheti c u
โฆ LIBER โฆ
A TWO-STEP PREPARATION OF 1-BENZYLPYRAZOLE-2- 15 N
โ Scribed by Mohamed, Murtedza bin; Parrick, John
- Book ID
- 120661865
- Publisher
- Taylor and Francis Group
- Year
- 1981
- Tongue
- English
- Weight
- 176 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0030-4948
No coin nor oath required. For personal study only.
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In order to cast some light upon the situation we have synthesized the colorless cyclotetraarene (1) [m. p. 254ยฐC (from chloroform/ether 2: l)] as shown from the dibromides (3)"l (route A) and (4)181 (route B)I9'. The compound (I), which is obtained in 25 and 18% yield, respectively, is shown to be