Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Jean-Claude Rossier"'
Autor:
Jean-Claude Rossier, and Adam W. Sledeski, Charles W. Jefford, John Boukouvalas, Ping-Zhong Huang
Publikováno v:
Journal of Natural Products, Vol. 67, No 8 (2004) pp. 1383-1386
Siphonodictidine (1) has been synthesized for the first time in a concise and regiocontrolled manner by using 2-(tert-butyldimethylsiloxy)-3-methylfuran (6) as the crucial building block. The silver trifluoroacetate-induced alkylation of 6 with omega
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::786149cd9a701c6a46cdc6d0c1c9309e
https://doi.org/10.1021/np0400860
https://doi.org/10.1021/np0400860
Publikováno v:
Journal of Physical Organic Chemistry. 13:569-573
The stability of tertiary carbenium ions was determined in the gas phase by ion cyclotron resonance (ICR) and by dissociative proton attachment (DPA). The rate constants for solvolysis of bridgehead derivatives correlate well with the stabilities of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cece0841409441805240e7db9867e6fe
https://doi.org/10.1002/1099-1395(200010)13:10<569::aid-poc274>3.0.co
https://doi.org/10.1002/1099-1395(200010)13:10<569::aid-poc274>3.0.co
Autor:
Jean-Claude Rossier, Paul Müller
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :2232-2237
The solvolysis of (R)-3-chloro-3,7-dimethyloctane (2), of the corresponding hydrogen phthalate (S)-4g, and of the p-nitrobenzoate (S)-4h proceeds with up to 87% inversion of configuration in solvents such as methanol or ethanol. The degree of inversi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1f77514b95d64ac373184abbbd4c705
https://doi.org/10.1039/b004884o
https://doi.org/10.1039/b004884o
Autor:
Paul Müller, M. Herreros, John S. Lomas, Jiri Mareda, Jean-Claude Rossier, José-Luis M. Abboud, Rafael Notario
Publikováno v:
Journal of Organic Chemistry, Vol. 64, No 17 (1999) pp. 6401-6410
The gas-phase stability of bridgehead carbocations has been determined by Fourier transform ion cyclotron resonance spectroscopy (FT ICR) based on dissociative proton attachment (DPA) of bridgehead bromides, chlorides, and alcohols. When appropriate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc38f23f7d763b7e631ed347114062f8
https://doi.org/10.1021/jo990724x
https://doi.org/10.1021/jo990724x
Publikováno v:
Helvetica Chimica Acta, Vol. 82, No 6 (1999) pp. 935-945
Olefins undergo cyclopropanation with diphenylsulfonium (ethoxycarbonyl)methylide (=diphenylsulfonium 2‐ethoxy‐2‐oxoethylide; 3a) in the presence of chiral CuI or RhII catalysts. trans/cis Ratios and ee's of the cyclopropanes 6 obtained with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58c8ed091a3e1f3b39cf4ef9a8ca5598
https://doi.org/10.1002/(sici)1522-2675(19990609)82:6<935::aid-hlca935>3.0.co
https://doi.org/10.1002/(sici)1522-2675(19990609)82:6<935::aid-hlca935>3.0.co
Autor:
Jean-Claude Rossier, Paul Müller, Gérald Bernardinelli, Mary Moran, Christian Gränicher, Hassan Imogaı̈
Publikováno v:
Helvetica Chimica Acta. 81:1754-1764
The cyclopropenation of diethoxypropyne (1) with methyl diazoacetate in the presence of [Rh₂{(2S)‐mepy}₄] (mepy=methyl 5‐oxopyrrolidine‐2‐carboxylate) proceeds with >95% ee. The resulting cyclopropenecarboxylate 2 underwent stereoselectiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b32d1ec863491c18ab69179027af7a14
https://doi.org/10.1002/(sici)1522-2675(19981007)81:10<1754::aid-hlca1754>3.0.co
https://doi.org/10.1002/(sici)1522-2675(19981007)81:10<1754::aid-hlca1754>3.0.co
Publikováno v:
Journal of Physical Organic Chemistry. 11:321-333
Transition metal-catalyzed decomposition of phenyliodonium and diphenylsulfonium ylides was in-vestigated with regard to application in asymmetric carbenoid reactions. Phenyliodonium ylides react in the presenceof Rh(II) catalysts with the same selec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1894880bac03d7d2fcf0c74c88be43ec
https://doi.org/10.1002/(sici)1099-1395(199805)11:5<321::aid-poc6>3.0.co
https://doi.org/10.1002/(sici)1099-1395(199805)11:5<321::aid-poc6>3.0.co
Autor:
Ernest W. Della, Paul Müller, M. Herreros, Jean-Claude Rossier, Obis Castaño, Rafael Notario, José-Luis M. Abboud
Publikováno v:
Journal of the American Chemical Society. 119:2262-2266
The stability of bridgehead carbocations has been determined by Fourier transform ion cyclotron resonance spectroscopy (FT ICR) based on dissociative proton attachment (DPA) of bromides and alcohols. The stability of the ions correlates with the solv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d5975f7a2ec68e8f0af99c7af1f33b
https://doi.org/10.1021/ja962319i
https://doi.org/10.1021/ja962319i
Autor:
Olivier Barbuzzi, Suzanne L. Feck, Manyck Rudaz, Ulrich Burger, Géza Timári, Jean-Claude Rossier, Craig J. Canfield, Shigeo Kohmoto, Wallace Peters, Charles W. Jefford, Philippe Kamalaprija, Ignacio Manzanares, D. Jaggi, Brain L. Robinson, Gérald Bernardinelli, Jiri Mareda, David Gerard
Publikováno v:
Helvetica Chimica Acta, Vol. 78, No 3 (1995) pp. 647-662
Two pairs of enantiomerically pure cis-fused cyclopenteno-1,2,4-trioxanes (7, ent-7 and 8, ent-8) are prepared (Schemes 1-3). Their identities are established by dye-sensitized photo-oxygenation of ent-7 and 8, ent-8 to the allylichydroperxides, redu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26fda9f7c0c7aaf19fa44982c879bf99
https://doi.org/10.1002/hlca.19950780312
https://doi.org/10.1002/hlca.19950780312
Autor:
Géza Timári, Allan P. Dishington, Gérald Bernardinelli, Dharmendra Misra, Jean-Claude Rossier, Charles W. Jefford
Publikováno v:
Tetrahedron Letters, Vol. 35, No 34 (1994) pp. 6275-6278
Submission of racemic, cis-fused cyclopenteno-1,2,4-trioxanes (1 and 1-ent) to catalytic amounts of K₂OsO₄ and (DHQD)₂PHAL and 1.2 equivalents of N-methylmorpholine N-oxide in aqueous acetone at 20°C (hybrid AD-mix-β) for 2 h gave the (-)-ena
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1412cef11c386bd23738c5b01ee1ba3b
https://doi.org/10.1016/s0040-4039(00)73410-1
https://doi.org/10.1016/s0040-4039(00)73410-1