30336-14-2Relevant articles and documents
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.
Convenient synthesis of α,β-unsaturated γ-butyrolactones and γ-butyrolactams via decarboxylative iodination of paraconic acids and β-carboxyl-γ-butyrolactams using 1,3-diiodo-5,5-dimethylhydantoin
Phae-Nok, Supasorn,Kuhakarn, Chutima,Pohmakotr, Manat,Reutrakul, Vichai,Soorukram, Darunee
, p. 11087 - 11095 (2015/11/25)
A convenient synthetic approach to α,β-unsaturated γ-butyrolactones and α,β-unsaturated γ-butyrolactams is developed. The reaction proceeds via decarboxylative iodination of paraconic acids and β-carboxyl-γ-butyrolactams, employing 1,3-diiodo-5,5-dimethylhydantoin (DIH) under irradiation, followed by dehydroiodination of β-iodo-γ-butyrolactones and γ-butyrolactams providing good yields of α,β-unsaturated γ-butyrolactones and γ-butyrolactams, which are synthetically useful building blocks in organic synthesis.
Convenient synthesis of 5-alkylfuran-2(5H)-ones
Ma, Jie,Wang, Si Hong,Yin, Yan Bing
, p. 3026 - 3031 (2011/08/22)
A convenient synthesis of 5-alkylfuran-2(5H)-ones are described starting from 3-nitropropanoate and aldehydes, promoted by neutral alumina, in 35-60% overall yields, via a condensation-lactonization-elimination pathway. Copyright
