[go: up one dir, main page]

Tori et al., 1984 - Google Patents

Acid-catalyzed backbone rearrangement of 5, 6-epoxyalnusanes and preparation of daturadiol.

Tori et al., 1984

Document ID
4721875781884746583
Author
Tori M
Takai M
Matsumoto Y
Moriyama Y
Tsuyuki T
Takahashi T
Ohnishi H
Itai A
Iitaka Y
Publication year
Publication venue
Bulletin of the Chemical Society of Japan

External Links

Snippet

Epoxidation of alnus-5-en-3β-yl acetate with m-chloroperbenzoic acid gave a 5β, 6β- epoxide as a main product together with a 5α, 6α-epoxide as a minor product. Treatment of the α-epoxide with BF 3· OEt 2 afforded a 1 (10), 5-diene and a mixture of 6α-hydroxy-12 …
Continue reading at jlc.jst.go.jp (other versions)

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J71/00Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0005Oxygen-containing hetero ring
    • C07J71/001Oxiranes
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J71/00Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0036Nitrogen-containing hetero ring
    • C07J71/0042Nitrogen only

Similar Documents

Publication Publication Date Title
SHAO et al. Saponins from leaves of Kalopanax septemlobus (Thunb.) Koidz.: structures of kalopanax-saponins La, Lb and Lc
Ishibashi et al. Constituents of the root bark of Ailanthus altissima Swingle. Isolation and X-ray crystal structures of shinjudilactone and shinjulactone C and conversion of ailanthone into shinjudilactone.
Djerassi et al. Mass Spectrometry in Structural and Stereochemical Problems. LXXXI. 1 Stereospecificity in a Hydrogen-Transfer Reaction Characteristic of 6-Keto Steroids2
ABE et al. Digitoxigenin oleandroside and 5α-adynerin in the leaves of Nerium odorum (Nerium 9)
Sjövall et al. Identification of 5α-pregnane-3α, 20α, 21-triol in human pregnancy plasma
Tori et al. Acid-catalyzed backbone rearrangement of 5, 6-epoxyalnusanes and preparation of daturadiol.
KOBAYASHI Marine terpenes and terpenoids. IV. Isolation of new cembranoid and secocembranoid lactones from the soft coral Sinularia mayi
Yamada et al. Synthesis and structure revision of intensely sweet saponin osladin
Gardner et al. Biotransformation of linoleic acid by Clavibacter sp. ALA2: heterocyclic and heterobicyclic fatty acids
Wagner et al. The turpethinic acids of Ipomoea turpethum L.
Anderson et al. Metabolic intermediates in the biological oxidation of lanosterol to eburicoic acid
HAYASHI et al. Studies on the Constituents of Asclepiadaceae Plants. XXXII.: Aglycones from Cynanchum wilfordi HEMSLEY
Ahmad et al. A saponin from the stem bark of Guaiacum officinale
Tori et al. The reaction of lupane and friedo-oleanane type triterpenes with m-chloroperbenzoic acid.
HAYASHI et al. On the tentative structure of wilforine
Hayakawa et al. Microbiological Transformation of Diosgenin1
Tanaka et al. Triterpene lactones from the stem bark of Abies firma
Fraga et al. A study of the microbiological reduction of α, β-unsaturated carbonyl ent-kaurenes by Gibberella fujikuroi
Abbot et al. Fatty acids, Part 30 The formation of 1, 4-epoxides from two series of trihydroxystearic acids by acid-catalysed cyclisation
Herz et al. Berlandin and subacaulin, two new guaianolides from Berlandiera subacaulis
Khare et al. A novel pregnane derivative from Sarcostemma brevistigma
Takai et al. Boron trifluoride etherate-catalyzed backbone rearrangement of 5. ALPHA., 10. ALPHA.-epoxyalnusan-3. BETA.-yl acetate and partial synthesis of isomultiflorenol.
KAWATA et al. A new product of cholesterol by metal-free autoxidation in aqueous dispersion
Yoshioka et al. Studies on antiandrogenic agents. Synthesis of 16β-ethyl-19-nortestosterone
Takeda et al. Studies on the Steroidal Components of Domestic Plants. XXXI. Constituents of Reineckia carnea KUNTH.(3). Pentologenin and Kitigenin.