[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Baxter et al., 1976 - Google Patents

Studies related to dihydro-1, 4-thiazines. Part VIII. β-Elimination reactions of 7-oxo-8-oxa-4-thia-1-azabicyclo [4.3. 0] non-2-ene-3-carboxylates

Baxter et al., 1976

Document ID
2826558912708038331
Author
Baxter A
Stoodley R
Publication year
Publication venue
Journal of the Chemical Society, Perkin Transactions 1

External Links

Snippet

The (6R)-9, 9-dimethyl derivative of methyl 7-oxo-8-oxa-4-thia-1-azabicyclo [4.3. 0] non-2- ene-3-carboxylate (1) is converted into potassium α-(5-methoxycarbonyl-2, 2-dimethyl-Δ4- thiazolin-3-yl) acrylate (11) by potassium t-butoxide. When the reaction is conducted in the …
Continue reading at pubs.rsc.org (other versions)

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61Preparation 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
    • C07C45/67Preparation 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
    • C07C45/68Preparation 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 by increase in the number of carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/587Unsaturated compounds containing a keto groups being part of a ring
    • C07C49/687Unsaturated compounds containing a keto groups being part of a ring containing halogen
    • C07C49/697Unsaturated compounds containing a keto groups being part of a ring containing halogen containing six-membered aromatic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/45Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
    • C07C45/46Friedel-Crafts reactions
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/58One oxygen atom, e.g. butenolide
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D493/00Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D317/00Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76Ketones containing a keto group bound to a six-membered aromatic ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/45Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
    • C07C45/455Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation with carboxylic acids or their derivatives
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/45Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by at least one doubly-bound oxygen atom, not being part of a -CHO group
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/06Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D497/00Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2101/00Systems containing only non-condensed rings
    • C07C2101/12Systems containing only non-condensed rings with a six-membered ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/39Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester
    • C07C67/42Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester by oxidation of secondary alcohols or ketones
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/093Preparation of halogenated hydrocarbons by replacement by halogens
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic 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
EP0045118B1 (en) Intermediates for the synthesis of bicyclo (2,2,1) heptanes and bicyclo (2,2,1) hept-2z-enes
Ono et al. Reaction of. alpha.-(phenylsulfinyl) acetonitrile with aldehydes and ketones to. gamma.-hydroxyalkenenitriles and syntheses of terpenoids
Parker et al. The radical cyclization approach to morphine. Models for highly oxygenated ring-III synthons
AU617184B2 (en) Intermediates for the production of epipodophyllotoxin and related compounds and processes for the preparation and use thereof
Forman et al. Convenient synthesis of the 1, 4-bishomo-6-secoheptaprismane ring system
Bailey et al. The total synthesis of (−)-suaveoline
Jansen et al. A new stereoselective approach for the total synthesis of (.+-.)-isotadeonal,(.+-.)-polygodial,(.+-.)-warburganal, and (.+-.)-muzigadial
White et al. Stereoselective, biogenetically patterned synthesis of (.+-.)-aplysistatin
Caine et al. Total synthesis of dl-oplopanone
Ogura et al. A versatile synthesis of four-, five-, and six-membered cyclic ketones using methyl methylthiomethyl sulfoxide.
Baxter et al. Studies related to dihydro-1, 4-thiazines. Part VIII. β-Elimination reactions of 7-oxo-8-oxa-4-thia-1-azabicyclo [4.3. 0] non-2-ene-3-carboxylates
EP0214426B1 (en) Intermediates in the synthesis of carboxylic acids
Houllemare et al. Use of phenylselenium trichloride for simple and rapid preparation of α-phenylselanyl aldehydes and ketones
Rosa et al. Total synthesis of smenochromene B through ring contraction
Boyer et al. Synthesis of agarofuran antifeedants. Part 6: Enantioselective synthesis of a key decalinic intermediate
Kurokawa The Thermal Reaction of 3-Acetylguaiazulene with Sulfur
Noshita et al. Reinvestigation of phenolic Ferrier Reaction: selective synthesis of aryl O-Δ2-glycosides
Pereira et al. Highly Oxygenated Decalins via Michael-Claisen Condensation
EP0217375B1 (en) Process for preparing optically active carbonyl compounds
Kumar et al. An efficient approach to the synthesis of 4H-1-benzothiopyran-4-ones via intramolecular Wittig reaction
US5011948A (en) Intermediates for the production of epipodophyllotoxin and related compounds and processes for the preparation and use thereof
Phillipson et al. Ketone homologation to produce α-methoxyketones: application to conduritol synthesis
Tokoroyama et al. Synthetic studies on terpenoid compounds. Part 14. Total synthesis of pyroangolensolide
Ferezou et al. Biomimetic synthesis of bacterial C50 carotenoids decaprenoxanthin and CP 450
Gaoni Dichlorocarbene adducts of sulfolenes and their chlorine reduction products: hydrogen chloride vs. sulfur dioxide elimination. Thiopyran dioxides and thiopyrones