An unexpected directing effect in the asymmetric transfer hydrogenation of α,α-disubstituted ketones.
Soni, Rina; Collinson, John-Michael; Clarkson, Guy C.; Wills, Martin; Organic letters 13 (2011) 4304–4307; doi:10.1021/ol201643v

data_1502348
_publ_section_title
;
 An unexpected directing effect in the asymmetric transfer hydrogenation
 of \a,\a-disubstituted ketones.
;
_journal_issue                   16
_journal_name_full               'Organic letters'
_journal_page_first              4304
_journal_page_last               4307
_journal_paper_doi               10.1021/ol201643v
_journal_volume                  13
_journal_year                    2011
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_chemical_formula_moiety         'C24 H32 O4 S'
_chemical_formula_sum            'C24 H32 O4 S'
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_cell_angle_beta                 116.107(3)
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_cell_length_c                   11.2107(2)
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_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd'
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_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997)'
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_diffrn_ambient_temperature      100(2)
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_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.946
_diffrn_measurement_device_type  'Oxford Diffraction Gemini R'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
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_exptl_crystal_colour            colourless
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'Flack H D (1983), Acta Cryst. A39, 876-881, 2754 Friedle pairs'
_refine_ls_abs_structure_Flack   0.01(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
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_refine_ls_number_reflns         6043
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_refine_ls_R_factor_all          0.0319
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_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0487P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
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