A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1977-07-7, Name is 11-(4-Methylpiperazin-1-yl)-5H-dibenzo[b,e][1,4]diazepine, molecular formula is C18H20N4. In an article, author is Palacios, Francisco,once mentioned of 1977-07-7, Quality Control of 11-(4-Methylpiperazin-1-yl)-5H-dibenzo[b,e][1,4]diazepine.
Selective Synthesis of Substituted Pyrrole-2-phosphine Oxides and -phosphonates from 2H-Azirines and Enolates from Acetyl Acetates and Malonates
A simple and efficient selective synthesis of 1H-pyrrole-2-phosphine oxides 3 and -phosphonates 7 by addition of enolates derived from acetyl acetates to 2H-azirinylphosphine oxide 1 and -phosphonate 6 is reported. Nucleophilic addition of enolates derived from diethyl malonate to 2H-azirines 1 and 6 led to the formation of functionalized 2-hydroxy-1H-pyrrole-5-phosphine oxide 9 and -phosphonate 10, while vinylogous alpha-aminoalkylphosphine oxides 14 and -phosphonate 15 may be obtained from azirines and the enolate derived from diethyl 2-phenylmalonate. Ring closure of vinylogous derivatives 14 and 15 in the presence of base led to the formation of 1,5-dihydro-3-pyrrolin-2-ones containing a phosphine oxide 17 or a phosphonate group 18.
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Reference:
Pyrroline – Wikipedia,
,1-Pyrroline | C4H7N – PubChem