2407-43-4Relevant articles and documents
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Reinheckel,Haage
, p. P29,P30 (1967)
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Study on the bromolactonisation of alkenoic acids with (diacetoxyiodo) benzene
He, Yan,Yang, Zhenping,Yan, Jie
, p. 167 - 169 (2010)
A study on the bromolactonisation of alkenoic acids is reported. When various pent-4-enoic acids reacted with (diacetoxyiodo)benzene (DIB) and lithium bromide in CH3OH at room temperature, most of the five-membered bromolactones were obtained in good to excellent yields in short times. Some had two diastereoisomers. When but-3-enoic acid and trans-hex-3-enoic acid were treated under the same conditions, only unsaturated lactones were found after workup. When hex-5-enoic acid was subjected to the same conditions, however, the desired six-membered bromolactone was not successfully separated.
A facile synthesis of γ-butenolides via cyclization of 3-alkenoic acids with dimethyl sulfoxide and oxalyl bromide
Ding, Rui,Liu, Yongguo,Liu, Lei,Li, Huimin,Tao, Sichen,Sun, Baoguo,Tian, Hongyu
supporting information, p. 3001 - 3007 (2019/08/26)
The combination of dimethyl sulfoxide and oxalyl bromide was used to accomplish the cyclization of 3-alkenoic acids with the aid of a base to afford γ-butenolides, in which bromodimethylsulfonium salt generated in situ was proposed to serve as a Br+ source.
Enantioselective protecting-group-free synthesis of (+)-9,10-dihydroecklonialactone B
Yassen, Asmaa Said Ali,Ishihara, Jun,Hatakeyama, Susumi
, p. 59 - 63 (2017/02/26)
An enantioselective protecting-group-free route to ecklonialactones, C-18 oxylipins isolated from the brown algae, was demonstrated by the synthesis of (+)-dihydroecklonialactone B from (E)-ethyl hex-3-enoate in 17 steps.
