ChemInform Abstract: 1,3,2‐DIAZAPHOSPHACYCLOALKANES

Amides of Trivalent Phosphorus Acids as Phosphorylating Reagents for Proton-Donating Nucleophiles

“…540 The second line of research includes heterocyclizations. It has been shown for numerous examples that 1,2-, 541,542 1,3-, [543][544][545] and 1,4- [546][547][548][549][550] di-primary, primary-and-secondary, and di-secondary diamines are efficiently phosphorylated by phosphorus and phosphonous di-and triamides (Scheme 102).…”

Synthesis of Phosphorus-Containing Macrocycles and Cryptands

“…of (CH2)n(CH2NHMe)2 (n = 4) with (R2N)2POEt (R = Me, Et) gives 40-63% yield of 1,3,2diazaphosphacycloalkane (58, Scheme 32) 77. …”