Organocatalytic enantioselective cascade Michael-Michael-Wittig reactions of phosphorus ylides: one-pot synthesis of the all-cis trisubstituted cyclohexenecarboxylates via the [1 + 2 + 3] annulation.
Hong, Bor-Cherng; Jan, Rei-Hau; Tsai, Chih-Wei; Nimje, Roshan Y.; Liao, Ju-Hsiou; Lee, Gene-Hsiang; Organic letters 11 (2009) 5246–5249; doi:10.1021/ol9021832

data_1504265
_publ_section_title
;
 Organocatalytic enantioselective cascade Michael-Michael-Wittig reactions
 of phosphorus ylides: one-pot synthesis of the all-cis trisubstituted
 cyclohexenecarboxylates via the [1 + 2 + 3] annulation.
;
_journal_issue                   22
_journal_name_full               'Organic letters'
_journal_page_first              5246
_journal_page_last               5249
_journal_paper_doi               10.1021/ol9021832
_journal_volume                  11
_journal_year                    2009
_chemical_absolute_configuration ad
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_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
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_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER SMART APEXCCD area detector'
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_exptl_absorpt_correction_T_max  0.8110
_exptl_absorpt_correction_T_min  0.3537
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.502
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_exptl_crystal_description       needle
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_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0410P)^2^+0.3659P] where P=(Fo^2^+2Fc^2^)/3'
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_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1504265