2008
DOI: 10.1016/j.tetlet.2008.05.026
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Convenient preparation of (Z)-α-halo-α,β-unsaturated aldehydes: synthesis of a Laurencia flexilis toxin

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Cited by 12 publications
(7 citation statements)
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“…The glycolipids 1026 and 1027, floridoside (1028) and D-isofloridoside (1029) and the related metabolites 1030-1032 were isolated from various species of Laurencia, all collected from mainland China, South Korea or India [290,808,[830][831][832][833]. The iodolactone 1033 was isolated from Laurencia majuscula [809], and (Z )-2-chloropentadec-2-enal (1034) containing an unusual chloroenal functionality was obtained from Laurencia flexilis [149], and its synthesis was achieved in one step from commercial tridecanal [834], whereas the α,β-unsaturated aldehydes 1035 and 1036 have been isolated from a number of Laurencia species [61,134,145,255,812]. The latter metabolite is considered the aldol product of pentadecanal (1041), with which it was also isolated from Laurencia filiformis [89].…”
Section: Miscellaneous Metabolitesmentioning
confidence: 99%
“…The glycolipids 1026 and 1027, floridoside (1028) and D-isofloridoside (1029) and the related metabolites 1030-1032 were isolated from various species of Laurencia, all collected from mainland China, South Korea or India [290,808,[830][831][832][833]. The iodolactone 1033 was isolated from Laurencia majuscula [809], and (Z )-2-chloropentadec-2-enal (1034) containing an unusual chloroenal functionality was obtained from Laurencia flexilis [149], and its synthesis was achieved in one step from commercial tridecanal [834], whereas the α,β-unsaturated aldehydes 1035 and 1036 have been isolated from a number of Laurencia species [61,134,145,255,812]. The latter metabolite is considered the aldol product of pentadecanal (1041), with which it was also isolated from Laurencia filiformis [89].…”
Section: Miscellaneous Metabolitesmentioning
confidence: 99%
“…The glycolipids 1026 and 1027, floridoside (1028) and D-isofloridoside (1029) and the related metabolites 1030-1032 were isolated from various species of Laurencia, all collected from mainland China, South Korea or India [290,808,[830][831][832][833]. The iodolactone 1033 was isolated from Laurencia majuscula [809], and (Z )-2-chloropentadec-2-enal (1034) containing an unusual chloroenal functionality was obtained from Laurencia flexilis [149], and its synthesis was achieved in one step from commercial tridecanal [834], whereas the α,β-unsaturated aldehydes 1035 and 1036 have been isolated from a number of Laurencia species [61,134,145,255,812]. The latter metabolite is considered the aldol product of pentadecanal (1041), with which it was also isolated from Laurencia filiformis [89].…”
Section: Miscellaneous Metabolitesmentioning
confidence: 99%
“…Essas reações levam à formação de derivados carbonilados α-halogenados-α,β-insaturados, que podem atuar como importantes blocos de construção para as sínteses de aminoácidos, heterociclos, aziridinas, polímeros, além de fármacos e produtos naturais. 109,110 Falck e colaboradores relataram uma série de trabalhos explorando essas reações. [109][110][111][112] O Esquema 22 mostra as condensações de tri-haloacetatos de alquila com aldeídos que, com um equivalente de Cr(II), formam os intermediários 68 que, na presença de outro equivalente de Cr(II), dão origem aos (Z)-α-haloacrilatos 69, com rendimentos de 91 a 100% e alta seletividade em favor do isômero Z (>99%).…”
Section: Sínteses Estereosseletivas De Compostos Carbonilados α-Halogunclassified
“…109,110 Falck e colaboradores relataram uma série de trabalhos explorando essas reações. [109][110][111][112] O Esquema 22 mostra as condensações de tri-haloacetatos de alquila com aldeídos que, com um equivalente de Cr(II), formam os intermediários 68 que, na presença de outro equivalente de Cr(II), dão origem aos (Z)-α-haloacrilatos 69, com rendimentos de 91 a 100% e alta seletividade em favor do isômero Z (>99%). Controlando-se as condições experimentais, foram isoladas, também, a partir de 68, pela adição de água, as di-haloidrinas 70, porém, com rendimentos mais modestos.…”
Section: Sínteses Estereosseletivas De Compostos Carbonilados α-Halogunclassified
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