Preparation of alkylated dodechydronaphto[2,1-b]furans
Alkylated dodecahydronaphtho[2,1-b]furans of the general formula I (I) where R1 and R2 are identical and each is hydrogen or methyl are prepared by reacting alkylated 2-hydroxydecahydronaphthalene-1-ethanol of the formula II (II) where R1 and R2 are as defined above, with a sulfonyl chloride in the...
Saved in:
Main Authors | , , , |
---|---|
Format | Patent |
Language | English |
Published |
17.04.1990
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Abstract | Alkylated dodecahydronaphtho[2,1-b]furans of the general formula I (I) where R1 and R2 are identical and each is hydrogen or methyl are prepared by reacting alkylated 2-hydroxydecahydronaphthalene-1-ethanol of the formula II (II) where R1 and R2 are as defined above, with a sulfonyl chloride in the presence of basic catalysts by performing the cyclization in the presence of concentrated aqueous alkali metal hydroxides and a phase transfer catalyst, preferably a tetra-substituted ammonium or phosphonium salt, the sulfonyl chloride used preferably comprising a sulfonyl chloride of the general formula III R3-SO2Cl where R3 is C1-C3-alkyl or phenyl which may be substituted in the para position by methyl, chlorine, bromine or nitro. |
---|---|
AbstractList | Alkylated dodecahydronaphtho[2,1-b]furans of the general formula I (I) where R1 and R2 are identical and each is hydrogen or methyl are prepared by reacting alkylated 2-hydroxydecahydronaphthalene-1-ethanol of the formula II (II) where R1 and R2 are as defined above, with a sulfonyl chloride in the presence of basic catalysts by performing the cyclization in the presence of concentrated aqueous alkali metal hydroxides and a phase transfer catalyst, preferably a tetra-substituted ammonium or phosphonium salt, the sulfonyl chloride used preferably comprising a sulfonyl chloride of the general formula III R3-SO2Cl where R3 is C1-C3-alkyl or phenyl which may be substituted in the para position by methyl, chlorine, bromine or nitro. |
Author | LAUTERBACH; GERALD GRAMLICH; WALTER BECKER; RAINER HICKMANN; ECKHARD |
Author_xml | – fullname: LAUTERBACH; GERALD – fullname: HICKMANN; ECKHARD – fullname: BECKER; RAINER – fullname: GRAMLICH; WALTER |
BookMark | eNrjYmDJy89L5WQwCyhKLUgsSizJzM9TyE9TSMzJrsxJLElNUUjJT0lNzqhMKcrPSyzIKMmPNtIx1E2KTSstSswr5mFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8aHBJpaGFkYGpo7GhFUAAAEALsg |
ContentType | Patent |
DBID | EVB |
DatabaseName | esp@cenet |
DatabaseTitleList | |
Database_xml | – sequence: 1 dbid: EVB name: esp@cenet url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP sourceTypes: Open Access Repository |
DeliveryMethod | fulltext_linktorsrc |
Discipline | Medicine Chemistry Sciences |
ExternalDocumentID | US4918205A |
GroupedDBID | EVB |
ID | FETCH-epo_espacenet_US4918205A3 |
IEDL.DBID | EVB |
IngestDate | Fri Jul 19 14:17:25 EDT 2024 |
IsOpenAccess | true |
IsPeerReviewed | false |
IsScholarly | false |
Language | English |
LinkModel | DirectLink |
MergedId | FETCHMERGED-epo_espacenet_US4918205A3 |
Notes | Application Number: US19880250077 |
OpenAccessLink | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900417&DB=EPODOC&CC=US&NR=4918205A |
ParticipantIDs | epo_espacenet_US4918205A |
PublicationCentury | 1900 |
PublicationDate | 19900417 |
PublicationDateYYYYMMDD | 1990-04-17 |
PublicationDate_xml | – month: 04 year: 1990 text: 19900417 day: 17 |
PublicationDecade | 1990 |
PublicationYear | 1990 |
RelatedCompanies | BASF AKTIENGESELLSCHAFT |
RelatedCompanies_xml | – name: BASF AKTIENGESELLSCHAFT |
Score | 2.4033375 |
Snippet | Alkylated dodecahydronaphtho[2,1-b]furans of the general formula I (I) where R1 and R2 are identical and each is hydrogen or methyl are prepared by reacting... |
SourceID | epo |
SourceType | Open Access Repository |
SubjectTerms | ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES APPARATUS THEREFOR CANDLES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DETERGENTS ESSENTIAL OILS FATTY ACIDS THEREFROM GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PERFUMES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS THEIR RELEVANT APPARATUS TRANSPORTING |
Title | Preparation of alkylated dodechydronaphto[2,1-b]furans |
URI | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900417&DB=EPODOC&locale=&CC=US&NR=4918205A |
hasFullText | 1 |
inHoldings | 1 |
isFullTextHit | |
isPrint | |
link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwdV3dS8MwED_mFPVNpzK_-yB9sri1adI-FHHtxhC2FbfJQGSkTUrF0ZauQ_bfm9RVfdlbSOC4HNwH9_E7gDtsM9pm3NQIDnQN6QRrNMKWZjAUcRMRFFGZGhgMcX-KnmfmrAZxNQtT4oR-leCIQqNCoe9Faa-zvySWV_ZWLh-CD3GVPvYmjqeyzbiYhI8iqtdxuv7IG7mq6zrTsTp8cZAtkcrNpx3YFUG0JZv_uq8dOZOS_XcovSPY8wWtpDiGGk8acOBWe9casD_YlLvFcaN5yxPAfs5_YLrTREkjhS4-1wtBgiksZTyM1ywXMXUWF-mbft_WgvdoJb3QKdz2uhO3rwkG5r9_nU_HFafGGdSTNOFNUFCISWAY1KBER8IeBS2qi9CCI7uFLTu0zqG5jcrF9qdLOJQSk6WRNrmCepGv-LXwsEVwUwrnG4TBgR8 |
link.rule.ids | 230,309,786,891,25585,76894 |
linkProvider | European Patent Office |
linkToHtml | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwdV3dS8MwED_mFOebTmV-rg_SJ4tbmybrQxHXbkzdF26TgUhJm5SKox1dh-y_N6mb-rK3kMBxd3Af3OV-B3CDLUbrjJsawb6uIZ1gjYa4oRkMhdxEBIVUlgZ6fdyZoKepOS1AtJmFyXFCv3JwRGFRgbD3LPfX878ilpv_rVzc-R_iKrlvj21XZetxMQkfRVS3abeGA3fgqI5jT0Zq_8VGlkQqNx92YFck2JZE2W-9NuVMyvx_QGkfwt5Q0IqzIyjwuAwlZ7N3rQz7vXW7WxzXlrc4BjxM-Q9MdxIrSajQ2edqJkgwhSWMB9GKpSKnnkdZ8qbf1jX_PVzKKHQC1XZr7HQ0wYD3K6s3GW04NU6hGCcxr4CCAkx8w6AGJToS_sivUV2kFhxZNSFL0DiDyjYq59ufqlDqjHtdr_vYf76AA6k92Sapk0soZumSX4lom_nXuaK-Ab1vhBI |
openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=Preparation+of+alkylated+dodechydronaphto%5B2%2C1-b%5Dfurans&rft.inventor=LAUTERBACH%3B+GERALD&rft.inventor=HICKMANN%3B+ECKHARD&rft.inventor=BECKER%3B+RAINER&rft.inventor=GRAMLICH%3B+WALTER&rft.date=1990-04-17&rft.externalDBID=A&rft.externalDocID=US4918205A |