Acid-catalyzed synthesis of 2,3-dihydronaphtho[2,3-b]furan and 3,4-dihydro-2H-benzo[g]chromene derivatives
- Authors
- Le, Thuy Quynh; Oh, Chang Ho
- Issue Date
- Jan-2023
- Publisher
- TAYLOR & FRANCIS INC
- Keywords
- Cyclization; 2; 3-dihydronaphtho[2; 3-b]furan; 3; 4-dihydro-2H-benzo[g]chromene; naphthofuran; PTSA
- Citation
- SYNTHETIC COMMUNICATIONS, v.53, no.1, pp.49 - 57
- Indexed
- SCIE
SCOPUS
- Journal Title
- SYNTHETIC COMMUNICATIONS
- Volume
- 53
- Number
- 1
- Start Page
- 49
- End Page
- 57
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185193
- DOI
- 10.1080/00397911.2022.2149343
- ISSN
- 0039-7911
- Abstract
- An efficient and facile method for producing 2,3-dihydronaphtho[2,3-b]furan and 3,4-dihydro-2H-benzo[g]chromene has been developed. This methodology utilizes an inexpensive and simple PTSA catalyst for the cyclization reaction of ortho-oxalate-, ortho-keto-, and ortho-formyl arylacetylenols to produce the corresponding products in high yield. This procedure was also successfully applied to the large-scale synthesis of the naphthofuran skeleton, which can be found in various natural products and pharmaceuticals.
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