200346-52-7Relevant academic research and scientific papers
A simple construction of chiral fused benzoxocine ring ethers from D-glucose by regioselective 8-endo-aryl radical cyclisation
Chattopadhyay, Partha,Mukherjee, Monika,Ghosh, Soma
, p. 2139 - 2140 (1997)
A regioselective 8-endo-trig aryl radical cyclisation of the 5,6-deoxy-D-xylo-5-enofuranosides 3a and 3b with tri-n-butyltin hydride provides the chiral furo[3,2-c][2]benzoxocines 4a and 4b in good yields; the crystal structure of 4a is reported.
Intramolecular base-free sonogashira reaction for the synthesis of benzannulated chiral macrocycles embedded in carbohydrate templates
Hussain, Altaf,Yousuf, Syed Khalid,Kumar, Deepak,Lambu, Malikharjunarao,Singh, Baldev,Maity, Sudip,Mukherjee, Debaraj
supporting information; experimental part, p. 1933 - 1940 (2012/09/22)
A base-free, intramolecular Sonogashira reaction-based general approach has been established for the diversity-oriented synthesis (DOS) of fused bi- and tricyclic systems containing benzannulated, 10- to 13-membered chiral macrocycles embedded in carbohydrate templates. Macrocycles with different ring sizes have been prepared by pre-designing the chiral building blocks. Base-sensitive groups like acetyl and TBDPS survived the reaction conditions. Copyright
Palladium-catalyzed intramolecular C-O bond formation: An approach to the synthesis of chiral benzodioxocines
Neogi, Arpita,Majhi, Tirtha P.,Achari, Basudeb,Chattopadhyay, Partha
, p. 330 - 336 (2008/09/18)
Palladium-catalyzed intramolecular aryl etherification using bulky binaphthylphosphane or bis(diphenylphosphanyl)ferrocene ligands is shown to be a convenient method for the synthesis of eight-membered oxygen heterocycles. Application of this methodology to a sugar derivative led to the synthesis of chiral benzodioxocine. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
Sequential Baylis-Hillman reaction and radical cyclization of furanose derivatives: expeditious approach to enantiopure benzo-fused nine-membered oxacycles
Majhi, Tirtha Pada,Neogi, Arpita,Ghosh, Soumen,Mukherjee, Alok Kumar,Chattopadhyay, Partha
, p. 12003 - 12010 (2007/10/03)
A regioselective 9-endo-trig aryl radical cyclization of d-glucose derived diastereomeric Baylis-Hillman reaction products with Bu3SnH led to highly functionalized tricyclic benzannulated ethers incorporating cis- and trans-9,5 bicyclic systems
Radical cyclization of exo-methylene furanose derivatives: An expedient approach to the synthesis of chiral tricyclic nucleosides and benzannulated oxepine derivatives
Neogi, Arpita,Majhi, Tirtha Pada,Ghoshal, Nanda,Chattopadhyay, Partha
, p. 9368 - 9374 (2007/10/03)
Tributyltin radical mediated cyclization of the glucose derived exo-methylene furanose derivatives 5a-c led to the highly functionalized cis-fused bicyclic ethers 6a-c. The product could subsequently be transformed to the optically active tricyclic nucleoside analogue 8 or oxepine derivative 9.
Synthesis of chiral cis- and trans-furo[3,2-c][2]benzoxocines from D-glucose by regioselective 8-endo aryl radical cyclisation
Nandi,Mukhopadhyay,Chattopadhyay
, p. 3346 - 3351 (2007/10/03)
A simple chiral synthesis of cis- and trans-furo[3,2-c][2]benzoxocines 8a-d and 9a-d through a regioselective 8-endo-trig aryl radical cyclisation of the respective 5,6-dideoxy-D-xylo-hex-5-enofuranosides 6a-d and 5,6-dideoxy-D-ribo-hex-5-enofuranosides 7
