0 0 0 0 0 a b c d e 2 3 Fig. 2. Thin-layer chromatogram of (a) chloranil, (b) tetrachlorohydroquinone, (c) l,Z-naphthoquinone, (d) 1,4-naphthoqumone, ( e ) mixture. Adsorbant and eluant as for Fig. 1. Color of thecomplexes: yellow-red. ## Cellulose ester of' ( I ) : Mercerized cellulose[41 (10.6
Synthesis of 1,5,9-cyclododecatriene-x-14C6
✍ Scribed by Alexander B. Susán; William P. Duncan
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- French
- Weight
- 300 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A small‐scale synthesis of 1,5,9‐cyclododecatriene‐x‐^14^C~6~ is described. 1,3‐Butadiene‐1,4‐^14^C~2~, specific activity of 1.15 mCi/mmole, was prepared via the thermal decomposition of tetramethylene‐1,4‐^14^C~2~‐bis‐(trimethylammonium hydroxide) and immediately converted to a mixture of stereoisomers of 1,5,9‐cyclododecatriene‐x‐^14^C~6~ using a Ziegler catalyst prepared in situ. The overall radiochemical yield was 15% (based on K^14^CN).
📜 SIMILAR VOLUMES
## Abstract Trimerization of butadiene in the presence of Ni(0) affords (1__E__,5__E__,9__E__)‐cyclododeca‐1,5,9‐triene **1** (__ttt__‐CDT), (1__E__,5__E__,9__Z__)‐cyclododeca‐1,5,9‐triene **2** (__ttc__‐CDT), and other isomers/oligomers. After optimization of reaction conditions, [^14^C~6~‐3,4,7,8
Metathetic ring-chain equilibrium; synthesis of 1,tiQ-trirnethyl-(lE,5E,9E)-cyclododecatriene from l , 4 -p o l y i s o p r e n e a )
## Abstract Modification of the traditional. Gomberg reaction conditions provides a simple, economical. route to 2‐chlorobiphenyl‐1′,2′,3′,4′,5′,6′‐^14^__C__~6~ __(I). The reaction of benzene‐U‐__^14^__C__~6~ __with an excess of the diasonium salt from__ 2__‐chloroaniline produces__ ^14^__C‐labelle