Reductive Bis-addition of Aromatic Aldehydes to α,β-Unsaturated Esters via the Use of Sm/Cu(I) in Air: A Route to the Construction of Furofuran Lignans.
Liu, Yongjun; Tian, Guang; Li, Jingjing; Qi, Yan; Wen, Yonghong; Du, Feng; The Journal of organic chemistry 82 (2017) 5932–5939; doi:10.1021/acs.joc.7b00278

data_4037480
_publ_section_title
;
 Reductive Bis-addition of Aromatic Aldehydes to \a,\b-Unsaturated Esters
 via the Use of Sm/Cu(I) in Air: A Route to the Construction of Furofuran
 Lignans.
;
_journal_issue                   11
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              5932
_journal_page_last               5939
_journal_paper_doi               10.1021/acs.joc.7b00278
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C20 H22 O5'
_chemical_formula_sum            'C20 H22 O5'
_chemical_formula_weight         342.38
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
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Olex2 1.2-beta
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
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CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
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  1 omega  -95.00  -61.00   1.0000    8.0000
omega____ theta____ kappa____ phi______ frames
    -      -19.5055  178.0000   30.0000 34

  2 omega  -39.00   88.00   1.0000    8.0000
omega____ theta____ kappa____ phi______ frames
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  3 omega   69.00  103.00   1.0000    8.0000
omega____ theta____ kappa____ phi______ frames
    -       22.7867 -178.0000  150.0000 34

  4 omega   35.00   89.00   1.0000    8.0000
omega____ theta____ kappa____ phi______ frames
    -       22.7867   19.0000  150.0000 54
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CrysAlisPro, Agilent Technologies,
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(compiled Feb  1 2013,16:14:44)
Empirical absorption correction using spherical harmonics,
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_exptl_crystal_colour            'clear light colourless'
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_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.14
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 w=1/[\s^2^(Fo^2^)+(0.0383P)^2^+0.4675P]
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_olex2_refinement_description
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1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C7(H7), C10(H10)
2.b Secondary CH2 refined with riding coordinates:
 C9(H9A,H9B)
2.c Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2A), C4(H4), C5(H5), C13(H13), C14(H14), C16(H16), C17(H17)
2.d Idealised Me refined as rotating group:
 C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C20(H20A,H20B,H20C)
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_olex2_submission_special_instructions 'No special instructions were received'