Rhodium Carbenoid Mediated C-H Activation of a Tertiary Methyl Group: An Enantiospecific Approach to the Angular Triquinanes Norsilphiperfolane and Norcameroonanes
Srikrishna; Babu, N. Chandrasekhar; Dethe, Dattatraya H., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2003, vol. 42, # 7, p. 1688 - 1690
Enantiospecific first total synthesis of (6S,7R)-silphiperfolan-6-ol
作者:A. Srikrishna、Gopalasetty Nagaraju、Vishal M. Sheth
DOI:10.1016/j.tet.2012.01.063
日期:2012.3
Enantiospecific first totalsynthesis of the angulartriquinanesesquiterpene (6S,7R)-silphiperfolan-6-ol has been accomplished, starting from 2-(3-isopropenyl-2-methylene-1-methylcyclopent-1-yl)acetic acid (readily available from (R)-limonene) employing an efficient, regioselective intramolecular rhodium carbenoid insertion into the CH bond of a tertiary methyl group as the key step.
Enantiospecific First Total Synthesis and Assignment of Absolute Configuration of the Sesquiterpene (−)-Cucumin H
作者:A. Srikrishna、Dattatraya H. Dethe
DOI:10.1021/ol034635p
日期:2003.6.1
The first totalsynthesis of the sesquiterpene (-)-cucumin H, a linear triquinane isolated from Macrocystidia cucumis, has been accomplished starting from (R)-limonene employing two different cyclopentannulation methodologies, which in addition to confirming the structure also established the absolute configuration of the natural product. [reaction: see text]
The substrate dependent competitive formation of cyclobutanones and cyclopentanones in an intramolecular rhodium carbenoid CH insertion reaction: enantiospecific total synthesis of silphiperfol-6-ene
作者:Adusumilli Srikrishna、Gopalasetty Nagaraju
DOI:10.1016/j.tetasy.2012.01.016
日期:2012.1
The enantiospecific total synthesis of silphiperfol-6-ene has been accomplished starting from the readily available monoterpene (R)-limonene, employing a rhodium carbenoid insertion into the CH bond of a tertiary methyl group. A substrate dependent competitive insertion of the rhodium carbenoid in the gamma- and beta-CH bonds to form cyclopentanone and cyclobutanones, respectively, has been described. (C) 2012 Elsevier Ltd. All rights reserved.
Srikrishna; Dethe, Dattatraya H., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2011, vol. 50, # 8, p. 1092 - 1106
作者:Srikrishna、Dethe, Dattatraya H.
DOI:——
日期:——
Srikrishna; Babu, N. Chandrasekhar; Dethe, Dattatraya H., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2003, vol. 42, # 7, p. 1688 - 1690
作者:Srikrishna、Babu, N. Chandrasekhar、Dethe, Dattatraya H.