82064-06-0Relevant academic research and scientific papers
DIRECT REGIOSELECTIVE FORMATION OF POLYSUBSTITUTED TETRAHYDROFURANS FROM UNPROTECTED POLYOLS
Fujioka, Hiromichi,Kitagawa, Hidetoshi,Kondo, Michinori,Kita, Yasuyuki
, p. 743 - 746 (2007/10/02)
The reaction of unprotected polyols (tetraols, pentitol and hexitol) with trimethyl orthobenzoate in CH2Cl2-MeOH afforded polysubstituted tetrahydrofurans in a one-pot synthesis.
A Stereospecific Synthesis of (+)-Muscarine
Mubarak, Azeez M.,Brown, Daniel M.
, p. 809 - 814 (2007/10/02)
A stereospecific synthesis of (+)-muscarine (1) is described in which acid-catalysed cyclisation of D-mannitol gives 2,5-anhydro-D-glucitol, isolated as its 1,3-O-isopropylidene-4,6-dibenzoate (3); acid hydrolysis then tosylation gives the 1,3-di-O-tosyl derivative (7), converted by sodium methoxide-methanol into 2,5:3,4-dianhydro-1-tosyl-D-allitol (8).This epoxide with sodium bis-(2-methoxyethoxy)aluminium hydride gives 2,5-anhydro-1,4-dideoxy-d-ribo-hexitol (10) and its 1,3-dideoxy-isomer (11) (12:1).The former, with tosyl chloride then trimethylamine gives (+)-muscarine tosylate, also isolated as chloride and bromide salts.
