✍ Scribed by J.-P. Hölck; E. Bosies; D.B.J. Herrmann
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract ^13^C‐ and ^14^C‐uniformly labelled catechol was synthesized from phenol in three steps. Phenol was derivatized with 2‐chloro‐5‐nitrobenzophenone in THF containing NaH, followed by __ortho__‐hydroxylation with 35% aqueous H~2~O~2~ in sulphuric acid/glacial acetic acid solution, and by c
## Abstract ^3^H‐Sch 58235 was prepared at a specific activity of 29.1 Ci/mmol by Ir(COD)(Cy~3~P)PyPF~6~ catalysed exchange with tritium gas. ^14^C‐Sch 58235 was prepared in three steps from __p__‐hydroxy[ring‐U‐^14^C]benzaldehyde with an overall radiochemical yield of 21%. ^13^C~6~‐Sch 58235 was s
## Abstract This report describes the synthesis of the ^13^C‐enriched and ^14^C‐labelled title compound starting from isotopically labelled isovaleraldehyde.
The syntheses of '%-ring labeled levamisole ([-)-2,3,5,6-tetrahydr0-6-phenyl[~'C-UL]imidazo(Z, 1b]thiole) from acetophenone-ring-UL-l'C in 5 steps plus resolution with a 7.5% overall yield, and %,-ring labeled tetramisole ([i]-2,3,5,6-tetrahydro-6-phenyif3 S ]imidaz0[2,?-bjthiazole) from benzene-'%,