✍ Scribed by Yuan, Chengye; Chen, Shoujun; Xie, Rongyuan; Feng, Hanzhen; Maier, Ludwig
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The electron‐impact induced fragmentation of twenty 3‐alkyl‐1‐phenyl‐Δ^2^‐1,2,4‐triazolin‐5‐ones, three 1‐phenyl‐1,2,4‐triazolin‐3,5‐diones and ten 2‐alkyl‐4‐phenyloxadiazolin‐5‐ones has been studied by conventional mass spectrometry. The major cleavages take place in the 1‐phenyl‐Δ^2^‐
## Abstract 2,4‐Bis‐(4‐methoxyphenyl)‐1,3,2,4‐dithiadiphosphetane‐2,4‐disulfide (Lawesson's reagent) (**1**) reacted with 2‐hydrazino‐3‐methyl‐quinoxaline (**2**) to give [1,2,4,3]‐triazaphospholo[4,5‐__a__]quinoxaline derivative **3**. The Mannich reaction using different amines on compound **3**
## Abstract By heating secondary __O__‐hydroxybenzamides at 110‐120 °C with the dimer of __p__‐methoxyphenylthionophosphine sulfide, 1, in HMPA, the main product is the corresponding thioamide (15‐51 %) but in addition two phosphorheterocyclic systems are isolated, namely 2,3‐dihydro‐2‐(4‐methoxyph