80271-04-1Relevant academic research and scientific papers
Synthesis of new C2 symmetrical dibenzospirodiamide and dibenzospirodiamine as potential chiral auxiliaries and building blocks of ionophores
Choi,Park,Kim,Park
, p. 1305 - 1308 (2000)
2,8-Diazadibenzo[c,i]spiro[5,5]undecan-1,7-dione 3 are synthesized via reaction of malonic ester with 2-nitrobenzyl bromide, followed by reduction-cyclization in 86% overall yield. 2,8-Diazadibenzo[c,i]-spiro[5,5]undecane 4 was obtained by reduction of 3
