90694-06-7Relevant academic research and scientific papers
Stereodivergent synthesis of 5a-carba-hexopyranoses from carbohydrates via 6-exo-dig radical cyclization: Preparation of 5a-carba-β-D-manno-, α-D-allo-, β-L-talo- and α-L-gulopyranose pentaacetates from D-mannose
Gomez, Ana M.,Moreno, Eduardo,Danelon, Gerardo O.,Valverde, Serafin,Lopez, J. Cristobal
, p. 2961 - 2974 (2007/10/03)
Four carbasugars, 5a-carba-β-D-manno-, α-D-allo-, β-L-talo- and α-L-gulopyranose pentaacetates, have been prepared in a stereodivergent manner from D-mannose. Alkynyl derivatives of 2,3:4,6-di-O-isopropylidene-D-mannopyranose, which are prepared by homolo
A general norbornyl based synthetic approach to carbasugars and 'confused' carbasugars
Mehta, Goverdhan,Talukdar, Pinaki,Mohal, Narinder
, p. 7663 - 7666 (2007/10/03)
The norbornyl system has been recognized simply as a 'locked' carbasugar and a short, general approach to carbasugars and their new siblings, 'confused' carbasugars, from readily available 7-ketonorbornanes is reported.
A norbornyl route to cyclohexitols: Structural diversity in fragmentation through functional group switching. Synthesis of α- and β- galactose, α-talose and α-fucopyranose carbasugars
Mehta, Goverdhan,Mohal, Narinder,Lakshminath, Sripada
, p. 3505 - 3508 (2007/10/03)
A novel fragmentation sequence has been executed within the norbornane system, involving C1-C7 bond scission, to extract a versatile, highly functionalized cyclohexanoid moiety. Its further evolution towards a range-of carbasugars is described. (C) 2000 Elsevier Science Ltd.
A novel entry to 5a-carba-hexopyranoses from carbohydrates based on a 6-exo-dig radical cyclization: Synthesis of 5a-carba-β-D-mannopyranose pentaacetate
Gomez, Ana M.,Danelon, Gerardo O.,Moreno, Eduardo,Valverde, Serafin,Lopez, J. Cristobal
, p. 175 - 176 (2007/10/03)
Carbohydrate-derived 2,3:4,6-diacetonides which are homologated at C-1 by reaction with phenyl acetylide undergo a 6-exo-dig radical cyclization, from a radical located at C-5, to yield highly functionalized cyclohexanes that are correlated with carba-sugars.
Cyclohexane polyols: Enantioselective synthesis of (+)-fortamine and of pseudosugars
Pingli, Liu,Vandewalle, Maurits
, p. 7061 - 7074 (2007/10/02)
(1R,2S,3R,4S)-4-butyryloxy-2,3-isopropylidenedioxy-5-cyclohexe n-1-ol (1) obtained upon enzymatic hydrolysis of the corresponding meso-dibutyrate 4b is a fully functionalized homochiral building block for the synthesis of cyclohexane polyols. Applications
(-)-QUINIC ACID IN ORGANIC SYNTHESIS. 2. FACILE SYNTHESES OF PSEUDO-β-D-MANNOPYRANOSE AND PSEUDO-β-D-FRUCTOPYRANOSE.
Shing, Tony K. M.,Tang, Ying
, p. 4571 - 4578 (2007/10/02)
Pseudo-β-D-mannopyranose (1) and pseudo-β-D-fructopyranose (2) have been obtained from quinic acid in seven and twelve steps respectively.
A New Synthetic Approach to Pseudo-sugars by Asymmetric Diels-Alder Reaction. Synthesis of Optically Pure Pseudo-β-D-mannopyranose, 1-Amino-1-deoxypseudo-α-D-mannopyranose and Pseudo-α-L-mannopyranose Derivatives
Takahashi, Tamiko,Kotsubo, Hironori,Iyobe, Akira,Namiki, Toshie,Koizumi, Toru
, p. 3065 - 3072 (2007/10/02)
Synthesis of the optically pure title compounds has been achieved.The key features involved (i) construction of 7-endo-oxabicyclohept-5-ene-2-carboxylates 3 and 9a by the asymmetric Diels-Alder reaction of (S)s-3-(2-pyridylsulphinyl)acry
A Novel Transformation of Four Aldoses to Some Optically Pure Pseudohexopyranoses and a Pseudopentofuranose, Carboxylic Analogues of Hexopyranoses and Pentofuranose. Synthesis of Derivatives of (1S,2S,3R,4S,5S)-, (1S,2S,3R,4R,5S)-, (1R,2R,3R,4R,5S)-, (1S,
Tadano, Kin-ichi,Maeda, Hiroo,Hoshino, Masahide,Iimura, Youichi,Suami, Tetsuo
, p. 1946 - 1956 (2007/10/02)
Knoevenagel reactions with dimethyl malonate of the suitably protected acylic aldehydes 6, 20, 34, and 46, which were prepared from D-ribose, D-xylose, D-arabinose, and D-erythrose, respectively, proceeded smoothly to provide α,β-unsaturated diesters 7, 2
