Diastereoselective Synthesis of Rauhut-Currier-Type Adducts via an Unexpected α-Addition of α,β-Unsaturated γ-Butyrolactams to Coumarin Derivatives.
Yang, Shu-Mei; Madhusudhan Reddy, Ganapuram; Liu, Meng-Hsien; Wang, Tzu-Ping; Yu, Jhen-Kuei; Lin, Wenwei; The Journal of organic chemistry 82 (2017) 781–789; doi:10.1021/acs.joc.6b02526

data_4032219
_publ_section_title
;
 Diastereoselective Synthesis of Rauhut-Currier-Type Adducts via an
 Unexpected \a-Addition of \a,\b-Unsaturated \g-Butyrolactams to Coumarin
 Derivatives.
;
_journal_issue                   1
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              781
_journal_page_last               789
_journal_paper_doi               10.1021/acs.joc.6b02526
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C24 H24 Br N O5'
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_cell_measurement_temperature    200(2)
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_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
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_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       16
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_diffrn_reflns_limit_l_min       -11
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_diffrn_reflns_theta_max         25.02
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_exptl_absorpt_correction_T_max  0.9835
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_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.64
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_refine_ls_extinction_method     none
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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^)+(0.0548P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     >2sigma(I)
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