Quinine-Derived Thiourea and Squaramide Catalyzed Conjugate Addition of α-Nitrophosphonates to Enones: Asymmetric Synthesis of Quaternary α-Aminophosphonates.
Bera, Kalisankar; Namboothiri, Irishi N. N.; The Journal of organic chemistry 80 (2015) 1402–1413; doi:10.1021/jo502332r

data_4030590
_publ_section_title
;
 Quinine-Derived Thiourea and Squaramide Catalyzed Conjugate Addition of
 \a-Nitrophosphonates to Enones: Asymmetric Synthesis of Quaternary
 \a-Aminophosphonates.
;
_journal_issue                   3
_journal_name_full               'The Journal of organic chemistry'
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_journal_page_last               1413
_journal_paper_doi               10.1021/jo502332r
_journal_volume                  80
_journal_year                    2015
_chemical_absolute_configuration ad
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;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.7 (release 18-10-2006 CrysAlis171 .NET)
(compiled Oct 18 2006,16:28:17)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
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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^)+(0.0601P)^2^+0.4817P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1321
_refine_ls_wR_factor_ref         0.1479
_reflns_number_gt                12993
_reflns_number_total             16632
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo502332r_si_003.cif
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_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

 Adding full bibliography for 4030590--4030591.cif.
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_cod_database_code               4030590