WO2006109895-A1  GERBIER P. ET AL.: 'An organometallic route to zinc phosphonates and their intercalates' JOURNAL OF MATERIALS CHEMISTRY vol. 9, no. 10, 1999, pages 2559 - 2565;  GERBIER P. ET AL.: 'An organometallic route to zinc phosphonates and their intercalates' JOURNAL OF MATERIALS CHEMISTRY vol. 9, no. 10, 1999, pages 2559 - 2565, XP003006781;  HUCHE M. ET AL.: '[2,3] and [2,5] Transpositions of enynol phosphites' TETRAHEDRON LETTERS vol. 44, 1973, pages 4291 - 4292;  HUCHE M. ET AL.: '[2,3] and [2,5] Transpositions of enynol phosphites' TETRAHEDRON LETTERS vol. 44, 1973, pages 4291 - 4292, XP003006782;  BENINCORI T. ET AL.: '2,5-Dimethyl-3,4-bis[(2R,5R)-2,5-dimethylp hospholano]thiophene: First Member of the Hetero-DuPHOS Family' JOURNAL OF ORGANIC CHEMISTRY vol. 70, no. 14, 2005, pages 5436 - 5441;  BENINCORI T. ET AL.: '2,5-Dimethyl-3,4-bis[(2R,5R)-2,5-dimethylp hospholano]thiophene: First Member of the Hetero-DuPHOS Family' JOURNAL OF ORGANIC CHEMISTRY vol. 70, no. 14, 2005, pages 5436 - 5441, XP003006783;  HUCHE M. ET AL.: '[2,3] and [2,5]Transpositions of enynol phosphites' TETRAHEDRON LETTERS vol. 44, 1973, pages 4291 - 4292, XP003006782;  See also references of EP 1882694A1EP1882694-A1  KRUGLOV S V ET AL: "SYNTHESIS OF SYMMETRICAL AND MIXED DIPHOSPHONINC ESTERS" JOURNAL OF GENERAL CHEMISTRY USSR, CONSULTANTS BUREAU, NEW YORK, NY, US, vol. 43, 1 January 1973 (1973-01-01), pages 1470-1478, XP008087621 ISSN: 0022-1279;  POLLOK, T., SCHMIDBAUR, H.: "2,3-Bis(diphenylphosphynyl)-1,3-butadiene via a double [2,3]-sigmatropic rearrangement. A reinvestigation of the reaction of 2-butyne-1,4-diol with chlorodiphenylphosphine" TETRAHEDRON LETTERS, vol. 28, no. 10, 1987, pages 1085-1087, XP002588894;  H. BECKMANN, G. GROSSMANN , G. OHMS: "31P-13C shift correlated 2D NMR spectra of the AA'X spin system: Determination of PP coupling constants and their relative signs in symmetrical diphosphonates" MAGNETIC RESONANCE IN CHEMISTRY, vol. 30, no. 9, 1992, pages 860-864, XP002588895;  THOMAS ERKER, NORBERT HANDLER: "Synthesis of Nitrated Thienylphosphonates via Michaelis-Arbuzov-Type Rearrangement" SYNTHESIS, no. 5, 2004, pages 668-670, XP002588896;  PUDOVIK S. I. ET AL.: "Acetylene-Allene-Diene Rearrangements of Diphosphites with a beta, gamma-Acetylene Linkage in a Common Ester Radical" J. GEN. CHEM. USSR, vol. 33, 1963, page 702, XP009135188;  PIOTR KIELBASINSKI ET AL.: "Asymmetric synthesis of alpha-sulfinylphosphonates in the thiolane series" TETRAHEDRON: ASYMMETRY, vol. 16, no. 3, 8 January 2005 (2005-01-08), pages 651-655, XP002588897;  MCCULLOUGH R D: "THE CHEMISTRY OF CONDUCTING POLYTHIOPHENES" ADVANCED MATERIALS, WILEY VCH VERLAG, DE LNKD- DOI:10.1002/(SICI)1521-4095(199801)10:2&LT ,93::AID-ADMA93&GT,3.0.CO,2-F, vol. 10, no. 2, 22 January 1998 (1998-01-22), pages 93-116, XP000727852 ISSN: 0935-9648;  See also references of WO 2006109895A1CN101208349-B  Philippe Gerbier, et al, An organometallic route to zinzc phosphonates and their intercalates. J.Mater.CHEM. .1999, 2559-2565.EP1882694-B1  KRUGLOV S V ET AL: "SYNTHESIS OF SYMMETRICAL AND MIXED DIPHOSPHONINC ESTERS" JOURNAL OF GENERAL CHEMISTRY USSR, CONSULTANTS BUREAU, NEW YORK, NY, US, vol. 43, 1 January 1973 (1973-01-01), pages 1470-1478, XP008087621 ISSN: 0022-1279;  POLLOK, T., SCHMIDBAUR, H.: "2,3-Bis(diphenylphosphynyl)-1,3-butadiene via a double [2,3]-sigmatropic rearrangement. A reinvestigation of the reaction of 2-butyne-1,4-diol with chlorodiphenylphosphine" TETRAHEDRON LETTERS, vol. 28, no. 10, 1987, pages 1085-1087, XP002588894;  H. BECKMANN, G. GROSSMANN , G. OHMS: "31P-13C shift correlated 2D NMR spectra of the AA'X spin system: Determination of PP coupling constants and their relative signs in symmetrical diphosphonates" MAGNETIC RESONANCE IN CHEMISTRY, vol. 30, no. 9, 1992, pages 860-864, XP002588895;  THOMAS ERKER, NORBERT HANDLER: "Synthesis of Nitrated Thienylphosphonates via Michaelis-Arbuzov-Type Rearrangement" SYNTHESIS, no. 5, 2004, pages 668-670, XP002588896;  PUDOVIK S. I. ET AL.: "Acetylene-Allene-Diene Rearrangements of Diphosphites with a beta, gamma-Acetylene Linkage in a Common Ester Radical" J. GEN. CHEM. USSR, vol. 33, 1963, page 702, XP009135188;  PIOTR KIELBASINSKI ET AL.: "Asymmetric synthesis of alpha-sulfinylphosphonates in the thiolane series" TETRAHEDRON: ASYMMETRY, vol. 16, no. 3, 8 January 2005 (2005-01-08), pages 651-655, XP002588897;  MCCULLOUGH R D: "THE CHEMISTRY OF CONDUCTING POLYTHIOPHENES" ADVANCED MATERIALS, WILEY VCH VERLAG, DE LNKD- DOI:10.1002/(SICI)1521-4095(199801)10:2&LT ,93::AID-ADMA93&GT,3.0.CO,2-F, vol. 10, no. 2, 22 January 1998 (1998-01-22), pages 93-116, XP000727852 ISSN: 0935-9648;  GERBIER P. ET AL.: 'An organometallic route to zinc phosphonates and their intercalates' JOURNAL OF MATERIALS CHEMISTRY vol. 9, no. 10, 1999, pages 2559 - 2565, XP003006781;  HUCHE M. ET AL.: '[2,3] and [2,5]Transpositions of enynol phosphites' TETRAHEDRON LETTERS vol. 44, 1973, pages 4291 - 4292, XP003006782;  BENINCORI T. ET AL.: '2,5-Dimethyl-3,4-bis[(2R,5R)-2,5-dimethylp hospholano]thiophene: First Member of the Hetero-DuPHOS Family' JOURNAL OF ORGANIC CHEMISTRY vol. 70, no. 14, 2005, pages 5436 - 5441, XP003006783KR1279917-B1  Journal of Materials Chemistry, 1999, vol.9, pp.2559-2565(1999 year);  Journal of Materials Chemistry, 1999, vol.9, pp.2559-2565(1999&#45380;)