A useful synthetic equivalent of a hydroxyacetone enolate.
Bigovic, Miljan; Maslak, Veselin; Tokic-Vujosevic, Zorana; Divjakovic, Vladimir; Saicic, Radomir N.; Organic letters 13 (2011) 4720–4723; doi:10.1021/ol2019357

data_1502443
_publ_section_title
;
 A useful synthetic equivalent of a hydroxyacetone enolate.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              4720
_journal_page_last               4723
_journal_paper_doi               10.1021/ol2019357
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration syn
_chemical_formula_moiety         '2(C15 H23 N O7), 0.5(H2 O)'
_chemical_formula_sum            'C30 H47 N2 O14.5'
_chemical_formula_weight         667.70
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_cell_angle_alpha                90.000
_cell_angle_beta                 104.18(1)
_cell_angle_gamma                90.000
_cell_formula_units_Z            1
_cell_length_a                   8.257(1)
_cell_length_b                   12.014(2)
_cell_length_c                   9.095(1)
_cell_measurement_reflns_used    1051
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      28.8348
_cell_measurement_theta_min      3.0517
_cell_volume                     874.7(2)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 16.3280
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Sapphire3,em Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0344
_diffrn_reflns_av_sigmaI/netI    0.0739
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            3647
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.81481
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             357
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.130
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         2453
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.1132
_refine_ls_R_factor_gt           0.0676
_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^)+(0.0404P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1077
_refine_ls_wR_factor_ref         0.1250
_reflns_number_gt                1587
_reflns_number_total             2453
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol2019357_si_005.cif
_cod_data_source_block           com2nSSS
_cod_database_code               1502443