Title : ( New Synthesis of Tetraalkyl 2,3-Dihydro-5- oxopyrrolo[2,1-a]isoindole-1,2,3,3-tetracarboxylates and Tetraalkyl 2,3-Dihydro-5-oxopyrrolo[2,1-a]- pyrrolidine-1,2,3,3-tetracarboxylates Mediated by Vinyltriphenylphosphonium Salts )
Authors: Issa Yavari , Abbas Ali Esmaeili ,
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Abstract
Protonation of the reactive 1:1 intermediate produced in the reaction between triphenylphosphine and dialkyl acetylenedicarboxylates by CH-acids, such as dialkyl phthalimidomalonates and dimethyl Succinimidomalonate, leads to a vinylphosphonium salt, which undergoes intramolecular Wittig reaction to produce the title compounds in fairly high yields.
Keywords
, Tetraalkyl 2, 3-Dihydro-5-oxopyrrolo[2, 1-a]isoindole-1, 2, 3, 3-tetracarboxylates , Tetraalkyl 2, 3-Dihydro-5-oxopyrrolo[2, 1-a]-pyrrolidine-1, 2, 3, 3-tetracarboxylates, Vinyltriphenylphosphonium Salts
@article{paperid:1026146,
author = {Issa Yavari and Esmaeili, Abbas Ali},
title = {New Synthesis of Tetraalkyl 2,3-Dihydro-5- oxopyrrolo[2,1-a]isoindole-1,2,3,3-tetracarboxylates and Tetraalkyl 2,3-Dihydro-5-oxopyrrolo[2,1-a]- pyrrolidine-1,2,3,3-tetracarboxylates Mediated by Vinyltriphenylphosphonium Salts},
journal = {Journal of Chemical Research},
year = {1998},
volume = {11},
number = {11},
month = {January},
issn = {1747-5198},
pages = {714--715},
numpages = {1},
keywords = {Tetraalkyl 2;3-Dihydro-5-oxopyrrolo[2;1-a]isoindole-1;2;3;3-tetracarboxylates
;Tetraalkyl 2;3-Dihydro-5-oxopyrrolo[2;1-a]-pyrrolidine-1;2;3;3-tetracarboxylates; Vinyltriphenylphosphonium Salts},
}
%0 Journal Article
%T New Synthesis of Tetraalkyl 2,3-Dihydro-5- oxopyrrolo[2,1-a]isoindole-1,2,3,3-tetracarboxylates and Tetraalkyl 2,3-Dihydro-5-oxopyrrolo[2,1-a]- pyrrolidine-1,2,3,3-tetracarboxylates Mediated by Vinyltriphenylphosphonium Salts
%A Issa Yavari
%A Esmaeili, Abbas Ali
%J Journal of Chemical Research
%@ 1747-5198
%D 1998
