Tricyclic Quaternary Ammonium Salts Derived from Cinchona Alkaloids.
Boratyński, Przemysław J; Kowalczyk, Rafał; Kobylańska, Anna; Bąkowicz, Julia; The Journal of organic chemistry 81 (2016) 12489–12493; doi:10.1021/acs.joc.6b02348

data_4037445
_publ_section_title
;
 Tricyclic Quaternary Ammonium Salts Derived from Cinchona Alkaloids.
;
_journal_issue                   24
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              12489
_journal_page_last               12493
_journal_paper_doi               10.1021/acs.joc.6b02348
_journal_volume                  81
_journal_year                    2016
_chemical_absolute_configuration syn
_chemical_formula_sum            'C22 H29 Cl N2 O'
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_cell_volume                     2010.9(2)
_computing_cell_refinement       'CrysAlisPro (Agilent Technologies, 2011)'
_computing_data_collection       'CrysAlisPro (Agilent Technologies, 2011)'
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_diffrn_radiation_monochromator  graphite
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_refine_diff_density_min         -0.162
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;
 Flack x determined using 621 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.09(8)
_refine_ls_extinction_method     none
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0553P)^2^+0.4612P] where P=(Fo^2^+2Fc^2^)/3'
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_reflns_Friedel_fraction_max     0.809
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_shelx_shelxl_version_number     2014/7
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