131435-06-8Relevant articles and documents
Stereoselective syntheses of racemic quercitols and bromoquercitols starting from cyclohexa-1,4-diene: Gala-, epi-, muco-, and neo-quercitol
Aydin, G?kay,Savran, Tahir,Akta?, Fatih,Baran, Arif,Balci, Metin
, p. 1511 - 1524 (2013/05/21)
The efficient synthesis of gala-, epi-, neo-, and muco-quercitols and some brominated quercitols starting from cyclohexa-1,4-diene is reported. Treatment of the dibromide, obtained by the addition of bromine to cyclohexa-1,4-diene, with m-chloroperbenzoic
(+)-proto-Quercitol, a natural versatile chiral building block for the synthesis of the α-glucosidase inhibitors, 5-amino-1,2,3,4-cyclohexanetetrols
Wacharasindhu, Sumrit,Worawalai, Wisuttaya,Rungprom, Wimolpun,Phuwapraisirisan, Preecha
scheme or table, p. 2189 - 2192 (2009/07/26)
An efficient synthesis of diastereomerically pure 5-amino-1,2,3,4-cyclohexanetetrols (6 and 11) and quercitol derivatives from naturally available (+)-proto-quercitol (1) is described. The stereochemistry of 1 is perfectly set up for regioselective protec
Highly stereoselective and stereospecific syntheses of a variety of quercitols from d-(-)-quinic acid
Shih, Tzenge-Lien,Lin, Ya-Ling,Kuo, Wei-Shen
, p. 1919 - 1924 (2007/10/03)
The highly stereoselective synthesis of (-)-epi-, (-)-allo- and neo-quercitols as well as stereospecific synthesis of (-)-talo- and (+)-gala-quercitols have been achieved. The general strategy is employing dihydroxylation of the isolated double bond of various kinds of protected chiral (1,4,5)-cyclohex-2-ene-triols, which are derived from d-(-)-quinic acid. The choosing of protecting groups from either BBA (butane 2,3-bisacetal) or acetyl groups will result in the various degrees of stereoselectivity of dihydroxylation. On the other hand, the cyclohexylidene acetal moiety is attributed to the stereospecificity during dihydroxylation to afford the request molecules.
An efficient and highly stereoselective synthesis of gala-Quercitol from 1,4-cyclohexadiene
Baran, Arif,Secen, Hasan,Balci, Metin
, p. 1500 - 1502 (2007/10/03)
gala-Quercitol was synthesized from 1,4-cyclohexadiene in seven steps and overall yield of 68%. Reaction of 5,6-dibromo-2,2-dimethylhexahydro-1,3-benzodioxole, synthesized from 1,4-cyclohexadiene in three steps, with excess NaOMe gave (3aα,5α,7aα)-5-metho
Synthesis of the enantiomers of 6-deoxy-myo-inositol 1,3,4,5-Tetrakisphosphate, structural analogues of myo-inositol 1,3,4,5-Tetrakisphosphate
Horne, Graeme,Potter, Barry V. L.
, p. 80 - 87 (2007/10/03)
D-myo-Inositol 1,3,4,5-tetrakisphosphate [Ins(1,3,4,5)P4] is produced rapidly from the established second messenger D-myo-inositol 1,4,5trisphosphate [Ins(1,4,5)P4] in stimulated cells. Despite extensive investigations, in particular
An Advantageous Synthesis of 1D- and 1L-1,2,3,5/4-Cyclohexanepentol
Biamonte, Marco A.,Vasella, Andrea
, p. 688 - 694 (2007/10/03)
The title compounds D-10 and L-10 were prepared from 1 in eight steps and in a combined overall yield of 41-49%.
A concise and convenient synthesis of DL-proto-quercitol and DL-gala-quercitol via ene reaction of singlet oxygen combined with [2 + 4] cycloaddition to cyclohexadiene
Salamci,Secen,Sutbeyaz,Balci
, p. 2453 - 2457 (2007/10/03)
Photooxygenation of 1,4-cyclohexadiene afforded hydroperoxy endoperoxides 3 and 4 in a ratio of 88:12. Reduction of 3 with LiAlH4 or thiourea followed by acetylation of the hydroxyl group and KMnO4 oxidation of the double bond gave proto-quercitol 10b. Application of the same reaction sequences to 4 resulted in the formation of gala-quercitol 14. Quercitols were easily obtained by ammonolysis of acetate derivatives in MeOH. The outcome of dihydroxylation reactions were supported by conformational analysis.
Stereoselective synthesis of 6-deoxy and 3,6-dideoxy-D-myo-inositol precursors of deoxy-myo-inositol phosphate analogues from D-galactose
Dubreuil, Didier,Cleophax, Jeannine,Vieira De Almeida, Mauro,Verre-Sebrie, Catherine,Liaigre, Jerome,Vass, George,Gero, Stephane D.
, p. 16747 - 16766 (2007/10/03)
The synthesis of chiral protected D-6-deoxy-myo-inositol derivatives from D-galactose is described. Ferrier rearrangement of hexenogalactopyranosides has been employed to produce the corresponding 6- deoxy-cyclohexanone polyols. The stereoselectivity of the carbocyclic transformation was discussed on the basis of the experimental data and a mechanism has been proposed. From deoxy-inososes, the access to a variety of 6-deoxy and 3,6-dideoxy-myo-inositol was performed to prepare suitable monool, diol and triol precursors for the synthesis of D-deoxy-myo-inositol phosphate analogues.
A novel synthesis of DL-proto-, and DL-vibo- quercitol via 1,4- cyclohexadiene
Salamci, Emine,Secen, Hasan,Suetbeyaz, Yasar,Balci, Metin
, p. 2223 - 2234 (2007/10/03)
Photooxygenation of 1,4-cyclohexadiene 3 followed by reduction with LiAIH4 or thiourea gave (25/1)-cyclohex-3-ene-triol 7a. trans-Hydroxylation of triol 7a with three different methods afforded both of proto-quercitol 1a and vibo-quercitol 2a.