✍ Scribed by Y. Charbonnel; J. Barrans
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📜 SIMILAR VOLUMES
## Abstract A new and efficient conjugate addition of trimethyl and triethyl phosphites to 3‐ω‐azidoacetylcoumarin **(****1****)** has been studied. The reaction proceeded smoothly at r.t. furnishing 1,2,3,4‐triazaphosphole coumarin derivatives **4a**, **4b** in ∼75% yields. Linear substituted tria
## Abstract The synthesis of several 1,2‐diaryl‐1__H__‐4,5,6,7‐tetrahydro‐1,3‐diazepines **1** by cyclization of __N__‐aryl‐__N'‐__benzoyltetramethylenediamines **2** is described. Two alternative synthetic routes to obtain precursors **2** are discussed, being that which employes pyrrolidine as st
Synthesis and Properties of 5-(4,6-Diphenyl-2-pyrimidin-2-yl)-1,2,4triazolin-3-thione and Its Derivatives. -The title compound (IV) is synthesized by alkali-mediated cyclization of acylthiosemicarbazide (III) and transformed into pyrimidine-substituted thiazolotriazoles (VIII). Some of the synthesi