A Novel Synthesis of 2-Acyl Cyclic Ethers and 3-Keto Cyclic Ethers Including Spiro Cyclic Ethers via Intramolecular Ring-Opening of α,β-Epoxy Sulfoxides with Hydroxyl Group
The α,β-epoxy sulfoxides 1 and 2 bearing ω-oxyalkyl group were synthesized from ω-oxyalkyl carbonyl compounds and 1-chloroalkyl phenyl sulfoxide. The intramolecular ring opening of the oxirane ring of these α,β-epoxy sulfoxides, through an attack of the terminal hydroxyl group, gave 2-acyl cyclic ethers or 3-keto cyclic ethers, including spiro-type cyclic ethers. This procedure is applicable to the
作者:SATOH, TSUYOSHI、IWAMOTO, KEN-ICHI、SUGIMOTO, ATSUSHI、YAMAKAWA, KOJI
DOI:——
日期:——
SATOH, TSUYOSHI;IWAMOTO, KEN-ICHI;YAMAKAWA, KOJI, TETRAHEDRON LETT., 28,(1987) N 23, 2603-2606
作者:SATOH, TSUYOSHI、IWAMOTO, KEN-ICHI、YAMAKAWA, KOJI
DOI:——
日期:——
Intramolecular ring closure of α,β-epoxy sulfoxides with hydroxyl group: A novel synthesis of 2-acyl cyclic ethers and 3-keto cyclic ethers
作者:Tsuyoshi Satoh、Ken-ichi Iwamoto、Koji Yamakawa
DOI:10.1016/s0040-4039(00)96159-8
日期:1987.1
Exo-trigonal-type intramolecular ring closure of the α,β-epoxy sulfoxides with hydroxylgroup gave 2-acyl cyclic ethers (5, 6, and 13 membered rings) in good yields. In contrast to this, endo-trigonal-type ring closure of the α,β-epoxy sulfoxides was rather difficult.