Nothing Special   »   [go: up one dir, main page]

KIKUCHI et al., 1973 - Google Patents

Studies on the Neutral Constituents of Pachysandra terminalis SIEB. et ZUCC. V. Structures of Pachysandiol-B and Pachysonol, New Friedelin Type Triterpenes

KIKUCHI et al., 1973

View PDF
Document ID
7268804790646079979
Author
KIKUCHI T
TAKAYAMA M
TOYODA T
ARIMOTO M
NIWA M
Publication year
Publication venue
Chemical and Pharmaceutical Bulletin

External Links

Snippet

Close relationship between pachysandiol—B (la) and pachysonol (Ila) was revealed by the following experiments. Chromium trioxide oxidation of Ia and of IIa gave the same diketone (III), C30H4SO2> mp 299—~ 301, which shows carbonyl absorption bands at 170351 and …
Continue reading at www.jstage.jst.go.jp (PDF) (other versions)

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2103/00—Systems containing at least three condensed rings
    • C07C2103/02—Ortho- or ortho- and peri-condensed systems
    • C07C2103/04—Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2103/06—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members
    • C07C2103/10—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings
    • C07C2103/12—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings only one five-membered ring
    • C07C2103/16—(Hydrogenated) benz[e]indenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2103/00—Systems containing at least three condensed rings
    • C07C2103/02—Ortho- or ortho- and peri-condensed systems
    • C07C2103/04—Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2103/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
    • C07C49/753—Unsaturated compounds containing a keto groups being part of a ring containing ether groups, groups, groups, or groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
    • C07C403/02—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains containing only carbon and hydrogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/02—Ethers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2102/00—Systems containing two condensed rings
    • C07C2102/02—The rings having only two atoms in common
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J13/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having a carbon-to-carbon double bond from or to position 17
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0036—Nitrogen-containing hetero ring
    • C07J71/0042—Nitrogen only
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2101/00—Systems containing only non-condensed rings
    • C07C2101/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2101/16—The ring being unsaturated
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C35/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems

Similar Documents

Publication Publication Date Title
Gravestock et al. Acetylenic bond participation in biomimetic polyene cyclizations. Model studies directed toward the synthesis of 20-keto steroids. Synthesis of dl-progesterone and dl-. DELTA. 4-androstene-3, 17-dione
Kawabata et al. Stereochemistry of the cycloaddition reaction of methylcarbenoid of zinc to cyclic allylic alcohols
Anderson et al. Stereoselective synthesis of two stereoisomers of demethylgorgosterol
Huffman et al. Studies on Resin Acids. II. 1 Synthesis of Some Tricyclic Steroid Analogs
Hikino et al. Structure and absolute configuration of cyperotundone
Migliuolo et al. Structure elucidation and synthesis of 3β, 6α-dihydroxy-9-oxo-9, 11-seco-5α-cholest-7-en-11-al, a novel 9, 11-secosterol from the sponge Spongia officinalis.
Inubushi et al. The Structure of Serratenediol.
Büchi et al. Synthesis of 1-epicyclocolorenone and stereochemistry of cyclocolorenone1
Paquette et al. Synthetic studies relating to the structure of senoxydene. A sequential annulation approach to angular triquinane construction capable of varied tetramethyl substitution patterns
KIKUCHI et al. Studies on the Neutral Constituents of Pachysandra terminalis SIEB. et ZUCC. V. Structures of Pachysandiol-B and Pachysonol, New Friedelin Type Triterpenes
Ireland et al. Total synthesis of terpenes. XV. Synthesis of 3, 10-dimethoxy-6a. beta., 12b. beta.-dimethyl-5, 6, 6a, 6b. alpha., 7, 8, 12b, 13-octahydropicene, a potential intermediate in triterpene synthesis
Herz et al. Resin acids. XIX. Structure and stereochemistry of adducts of levopimaric acid with cyclopentenone and 1-cyclopentene-3, 5-dione. Fovarski reaction of an enedione epoxide
BARNES et al. A new triterpene from Vellozia compacta
Braude et al. 261. Syntheses of polycyclic systems. Part III. Some hydroindanones and hydrofluorenones. The mechanism of the nazarov cyclisation reaction
Ojima et al. Dehydroannulenes. I. Synthesis and properties of 1, 5, 10, 14-tetramethyl-6, 8, 15, 17-tetrakisdehydro (18) annulene.
Ireland et al. Total synthesis of terpenes. XIV. Interpretation of the transmogrification of 4. beta., 7a. alpha.-dimethyl-1. alpha.-hydroxy-4. alpha.-phenyl-4, 5, 6, 7-tetrahydro-2-indanone by base
Yosioka et al. Studies on the Constituents of Atractylodes. X. Correlation of Hinesol and β-Vetivone
Schmidt Substituent effects on the orientation of Diels-Alder reactions. I
Kutney et al. Synthetic studies in the Veratrum alkaloid series. I. Introduction and the total synthesis of appropriate C-nor-D-homo steroid derivatives
Elix et al. Unsaturated 8-membered ring compounds. VII. Synthesis and cycloaddition reactions of 7, 8-dimethylene-1, 3, 5-cyclooctatrienes. The synthesis of dicyclooctatetraeno [1, 2: 4, 5] benzene
Zalkow et al. The Synthesis of 5a, 8, 8-Trimethyl-3, 10a-ethanoperhydrophenanthrene. Terpenes. VII1
YAMAKAWA et al. Studies on the terpenoids and related alicyclic compounds. XXIII. Total syntheses of (±)-phomenone,(±)-3-epiphomenone,(±)-ligularenolide, and (±)-furanoligularanone
HORII et al. Synthesis of Racemic Loliolide
Yamashita et al. Synthesis of a 24-epimeric mixture of 4. ALPHA., 14. ALPHA., 24-trimethyl-9 (11)-cholesten-3-one.
Cope et al. Proximity effects. Reactions of lead tetraacetate with 4-and 5-phenylcyclooctanol