132911-42-3Relevant articles and documents
Substrate Controlled Regioselective Bromination of Acylated Pyrroles Using Tetrabutylammonium Tribromide (TBABr3)
Gao, Shuang,Bethel, Travis K.,Kakeshpour, Tayeb,Hubbell, Grace E.,Jackson, James E.,Tepe, Jetze J.
, p. 9250 - 9255 (2018/07/15)
Electrophilic bromination of pyrroles bearing carbonyl substituents at C-2 typically results in a mixture of the 4- and 5-brominated species, generally favoring the 4-position. Herein, we describe a substrate-controlled regioselective bromination in which
Selective synthesis of N-substituted pyrrolo[1,2-a]pyrazin-1(2H)-one derivatives via alkyne cyclization
?etinkaya, Yasin,Balci, Metin
supporting information, p. 6698 - 6702 (2014/12/11)
A novel and efficient synthesis of N-substituted pyrrolo-pyrazinone derivatives has been developed. A trichloroacetyl group connected to the pyrrole ring was converted into the desired carboxamide derivatives. Promoted by NaH, the pyrrole carboxamide derivatives underwent a tandem reaction with propargyl bromide to afford pyrrolo-pyrazinones with high efficiency under very mild conditions. The mechanism for the formation of the products is discussed and supported by DFT calculations.
Acid catalyzed halogen dance on deactivated pyrroles
Tutino, Federico,Papeo, Gianluca,Quartieri, Francesca
experimental part, p. 112 - 117 (2010/04/23)
(Chemical Equation Presented) A study on the acid catalyzed halogen dance (ACHD) on deactivated bromopyrroles is reported. A different behavior is observed when considering singly deactivated pyrrole alkylcarboxamides, or doubly deactivated pyrroleketo-lactams (aldisines). Although less electron deficient pyrrole alkylcarboxamides suffer from ACHD, the double deactivation on keto-lactams disfavors pyrrole ring protonation thus preventing halogen scrambling. The mechanism involved in the rearrangement is hypothesized.
3-PYRROLYL-PYRIDOPYRAZOLES AND 3-PYRROLYL-INDAZOLES AS NOVEL KINASE INHIBITORS
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Page/Page column 78, (2010/02/06)
Compounds of Formula (I) are useful as mediators of protein kinases and have activity as cell proliferation inhibitors where X, R1-R7 and R9 are as defined herein.
Alpha- haloenamine reagents
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, (2008/06/13)
The present invention describes immobilized haloenamine reagents, immobilized tertiary amides, methods for their preparation, and methods of use.
Bioactive Bromopyrrole Metabolites from the Caribbean Sponge Agelas conifera
Keifer, Paul A.,Schwartz, Robert E.,Koker, Moustapha E. S.,Hughes, Robert G.,Rittschof, Dan,Rinehart, Kenneth L.
, p. 2965 - 2975 (2007/10/02)
Biologically active extracts of the Carribean sponge Agelas conifera have yielded, in exhaustive studies, the diacetate salts of seven new bromopyrroles (1, 3-8), as well as that of the known debromooroidin dimer sceptrin (2).These compounds were found to be antiviral and antibacterial and were active in barnacle settlement and biochemical prophage induction assays.The structures assigned were based on spectroscopic comparison to sceptrin and two-dimensional NMR data.Synthetic bromopyrroles were used to verify bromine substitution patterns.The oxysceptrins (4, 5) are characterized by their aminoimidazolinone group, the ageliferins (6-8) by a unique cyclohexene-based skeleton.