70150-56-0Relevant academic research and scientific papers
Synthesis of the reported structure of pogostol and a total synthesis of (±)-kessane without the use of protecting groups
Booker-Milburn, Kevin I.,Jenkins, Helen,Charmant, Jonathan P. H.,Mohr, Peter
, p. 3309 - 3312 (2003)
(Matrix presented) A short racemic synthesis of kessane from 4-hydroxy-4-methyl-2-cyclohexenone is described using a route that also resulted in the synthesis of the reported structure of pogostol. The key step involves an Fe(III)-mediated tandem radical
Oxodealkenylative Cleavage of Alkene C(sp3)?C(sp2) Bonds: A Practical Method for Introducing Carbonyls into Chiral Pool Materials
Smaligo, Andrew J.,Wu, Jason,Burton, Nikolas R.,Hacker, Allison S.,Shaikh, Aslam C.,Quintana, Jason C.,Wang, Ruoxi,Xie, Changmin,Kwon, Ohyun
supporting information, p. 1211 - 1215 (2019/12/12)
Reported herein is a one-pot protocol for the oxodealkenylative introduction of carbonyl functionalities into terpenes and terpene-derived compounds. This transformation proceeds by Criegee ozonolysis of an alkene, reductive cleavage of the resulting α-alkoxy hydroperoxide, trapping of the generated alkyl radical with 2,2,6,6-tetramethylpiperidin-1-yl (TEMPO), and subsequent oxidative fragmentation with MMPP. Using readily available starting materials from chiral pool, a variety of carbonyl-containing products have been accessed rapidly in good yields.
Substituent effect on the photochemistry of 4,4-dialkoxylated- and 4-hydroxylated cyclohexenones
Chen, Yu-Jen,Wang, Hui-Ling,Villarante, Nelson R.,Chuang, Gary Jing,Liao, Chun-Chen
, p. 9591 - 9599 (2013/10/22)
Photochemistry of the title compounds in various solvents was studied using a broad band of light centered at 350 nm. C-4 spiroketal cyclohexenone 4 (1.0 M) afforded dimers and 12b with the predominance of the former in polar solvent and the latter in non
One-pot synthesis of 1,2,3-triols from allylic hydroperoxides and a catalytic amount of OsO4 in aqueous acetone
Alp, Cemalettin,Atmaca, Ufuk,?elik, Murat,Gültekin, Mehmet Serdar
experimental part, p. 2765 - 2768 (2010/02/28)
Allylic hydroperoxides were converted into the corresponding triols in the presence of a catalytic amount of OsO4. The present reaction involves regeneration of active osmium species by the hydroperoxide functionality and occurs in a diastereoselective manner to form triols in high yields. A plausible mechanism for the formation of 1,2,3-triols from allylic hydroperoxide is presented.
Synthesis of 4-hydroxy-4-methylcyclohex-2-en-1-one
Parladar, Vesile,Gueltekin, M. Serdar,Celik, Murat
, p. 10 - 11 (2007/10/03)
4-Hydroxy-4-methylcyclohex-2-en-1-one was synthesised from 4-methylanisole. The key step is the regioselective reaction of singlet oxygen with 4-methylcyclohex-3-en-1-one.
Captodative olefin 3-p-nitrobenzoyloxy-3-buten-2-one as a Diels-Alder ketene equivalent for the synthesis of γ-hydroxycyclohexenones
Ochoa, Maria E.,Arias, Maria S.,Aguilar, Raul,Delgado, Francisco,Tamariz, Joaquin
, p. 14535 - 14546 (2007/10/03)
A short and regioselective synthesis of γ-hydroxycyclohexenones is described, using 3-p-nitrobenzoyloxy-3-buten-2-one (2a) as a ketene equivalent in Diels-Alder reactions with substituted dienes. Oxidation with MCPBA of the α-acetylcyclohexenol derivative
Short and efficient synthesis of (R)-4-hydroxy-4-methyl cyclohexenone
Bueno,Bueno, Ana B.,Carmen Carreno,Carreno, M. Carmen,Garcia Ruano,Ruano, Josel Garcia,Fischer,Fischer, Jean
, p. 3737 - 3740 (2007/10/02)
The two steps asymmetric synthesis of the enantiomerically pure (R)-4-hydroxy-4-methylcyclohex-2-en-1-one is reported in a 70% overall yield. The highly stereoselective addition of AlMe3/ZnBr2 to [2S,(S)R]-4,4-ethylenedioxy-2-p-tolyl
Ruthenium(II)-Catalyzed Reactions of 1,4-Epiperoxides
Suzuki, Masaaki,Ohtake, Hiroaki,Kameya, Yoshimi,Hamanaka, Nobuyuki,Noyori, Ryoji
, p. 5292 - 5302 (2007/10/02)
The behavior of 1,4-epiperoxides in the presence of transition-metal complexes is highly dependent on the structures of the substrates and the nature of the metal catalysts.Reaction of saturated epiperoxides such as 1,3-epiperoxycyclopentane, 1,4-epiperoxycyclohexane, or dihydroascaridole catalyzed by RuCl2(PPh3)3 in dichloromethane gives a mixture of products arising from fragmentation, rearrangement, reduction, disproportionation, etc.Prostaglandin H2 methyl ester undergoes clean and stereospecific fragmentation to afford methyl(5Z,8E,10E,12S)-12-hydroxy-5,8,10-heptadecatrienoate and malonaldehyde.Bicyclic 2,3-didehydro 1,4-epiperoxides give the syn-1,2:3,4-diepoxides by the same catalyst.The monocyclic analogues are transformed to a mixture of diepoxides and furan products.The stereochemical outcome of the epoxide formation reflects unique differences in the ground-state geometry of the starting epiperoxide substrates.FeCl2(PPh3)2 serves as a useful catalyst for the skeletal change of sterically hindered bicyclic 2,3-didehydro 1,4-epiperoxides to the syn-diepoxides.In addition, the Fe complex best effects the conversion of 1,4-unsubstituted 2,3-didehydro epiperoxides to furans.The Ru-catalyzed reactions are interpreted in terms of the intermediacy of inner-sphere radicals formed by atom transfer of the Ru(II) species to peroxy substrates, in contrast to the Fe-catalyzed reactions proceeding via free, outer-sphere radicals generated by an electron-transfer mechanism.
A New Keto-alcohol, (-)-Mintlactone, (+)-isoMintlactone and Minor Components in Peppermint Oil
Takahashi, Katsuhiro,Someya, Taichi,Muraki, Shigeru,Yoshida, Toshio
, p. 1535 - 1544 (2007/10/02)
Eighty-one constituents were newly identified from the oil of Mentha piperita L., including a new keto-alcohol, (-)-mintlactone and (+)-isomintlactone.They were determined by spectral data and syntheses to be 4-hydroxy-4-methyl-2-cyclohexen-1-one (8), (6R
