Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Scott M. Sheehan"'
Autor:
Erin A. Curtis, Albert Padwa, James P. Snyder, C. Oliver Kappe, Scott M. Sheehan, and Kimberly J. Worsencroft
Publikováno v:
Journal of the American Chemical Society. 122:8155-8167
α-Diazo esters containing an amido group in the γ-position have been found to undergo a rhodium(II)-catalyzed transformation, producing five-membered ammonium or carbonyl ylides depending on the reaction conditions used. In the absence of an extern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63ead5a0b12e67a913cd4a58dede196d
https://doi.org/10.1021/ja001088j
https://doi.org/10.1021/ja001088j
Publikováno v:
The Journal of Organic Chemistry. 64:8648-8659
1-(Benzenesulfonyl-diazoacetyl)-pyrrolidin-2-one was prepared by a diazo transfer of 1-(benzenesulfonylacetyl)-pyrrolidin-2-one with p-acetamidobenzenesulfonyl azide and triethylamine. Treatment of the diazoimide with a catalytic quantity of rhodium(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c51e04610fff711de2ba38dca59d6e38
https://doi.org/10.1021/jo9911600
https://doi.org/10.1021/jo9911600
Publikováno v:
Tetrahedron Letters. 39:4761-4764
Thio N-acyliminium ions are readily generated from the reaction of thioamides with bromoacetyl chloride. In the presence of tethered π-nucleophiles, cyclization occurs to give S,N-acetals which can be further converted into various alkaloid skeleton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7b261af7252cbc9eebb1df6b4259e78
https://doi.org/10.1016/s0040-4039(98)00902-2
https://doi.org/10.1016/s0040-4039(98)00902-2
Publikováno v:
Tetrahedron Letters. 39:949-952
Ligated rhodium-carbene complexes, long postulated as critical intermediates in the chemistry catalyzed by Rh 2 (O 2 CR) 4 , are widely believed to be polarized as shown in 1 and 2 . Quantum chemical calculations for the H 2 C: complex and analogs su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d1f3cce1623b69b2b40958c98f9f2be
https://doi.org/10.1016/s0040-4039(97)10667-0
https://doi.org/10.1016/s0040-4039(97)10667-0
Autor:
Joseph P. Marino, Soyfur Miah, Scott M. Sheehan, Ian C. Richards, Albert Padwa, Alexandra M. Z. Slawin, Christopher J. Moody, Mark A. Semones
Publikováno v:
Tetrahedron. 52:2489-2514
A range of substituted α-diazoamides 1–8 and diazoimides 9–12 was prepared from the corresponding amines or amides. Rhodium(II) catalysed decomposition of the diazoamides resulted in attack on the aromatic ring to give oxindoles or attack on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc37f0324f3ddaadbbcf12a72bc8e55
https://doi.org/10.1016/0040-4020(95)01070-x
https://doi.org/10.1016/0040-4020(95)01070-x
Publikováno v:
Tetrahedron Letters. 35:849-852
Ethyl 2-diazomalonyl chloride readily reacts with aromatic and aliphatic amines, alcohols, thiols, and amides to form a variety of α-diazo carbonyl species.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d53fc92c1a1ebefa0ca9fad1503e94a
https://doi.org/10.1016/s0040-4039(00)75980-6
https://doi.org/10.1016/s0040-4039(00)75980-6
Publikováno v:
ChemInform. 25
Ethyl 2-diazomalonyl chloride readily reacts with aromatic and aliphatic amines, alcohols, thiols, and amides to form a variety of α-diazo carbonyl species.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1298a9c687c7430b386a20bb91942c3
https://doi.org/10.1002/chin.199425093
https://doi.org/10.1002/chin.199425093
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0b509d2b354a1ef53fb6ef35fbf8ba5
https://doi.org/10.1002/chin.199718182
https://doi.org/10.1002/chin.199718182
Autor:
Scott M. Sheehan, Albert Padwa
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e603a914bdbdecfb10aa164311038de7
https://doi.org/10.1002/chin.199723248
https://doi.org/10.1002/chin.199723248
Publikováno v:
ChemInform. 29
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d9ccb9738181c3adb3e137458dbac02
https://doi.org/10.1002/chin.199839246
https://doi.org/10.1002/chin.199839246