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Crystal structure, 14 quaternization

Figure 15 Crystal structure for (a) the sulfate complex of H2[28b] +, (b) the sulfate complex of H2[29] +, and (c) the chloride complex of the quaternized 30. Figure 15 Crystal structure for (a) the sulfate complex of H2[28b] +, (b) the sulfate complex of H2[29] +, and (c) the chloride complex of the quaternized 30.
Treatment of a THF solution of trimethylenetetrazole 44 with a solution of BuLi in hexane affords a yellow to orange solution of the lithiated tetrazole 45 (structure tentatively assigned). Alkylation with Mel gives 7-methyl-6,7-dihydro-5//-pynolo[ 1,2-c]tetrazolc 46 in 73% yield. Quaternization of 46 with dimethyl sulfate affords a mixture (3 1) of tetrazolium salts 47 and 48 from which PFg- salts were obtained by crystallization (Scheme 2) <1997MI671>. [Pg.950]

See other pages where Crystal structure, 14 quaternization is mentioned: [Pg.627]    [Pg.273]    [Pg.38]    [Pg.149]    [Pg.207]    [Pg.60]    [Pg.73]    [Pg.952]    [Pg.149]    [Pg.72]    [Pg.271]    [Pg.84]    [Pg.192]    [Pg.537]    [Pg.423]    [Pg.59]    [Pg.515]   
See also in sourсe #XX -- [ Pg.157 ]



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Quaternization

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