EP867437-A1  KWAN-YUE JEN ET AL.: JOURNAL OF THE CHEMICAL SOCIETY, CHEMICAL COMMUNICATIONS, 1987, LETCHWORTH GB, page 309 XP002069419;  DUCHER S ET AL: "Action of thiols on ethylenic.gamma.-lactones in an acidic or basic medium" BULL. SOC. CHIM. FR. (BSCFAS);73; (3)(PT. 2); PP.1037-42, U.E.R. SCI. EXACTES NAT.;GROUPE RECH. CHIM. ORG.; CLERMONT-FERRAND; FR., XP002069416;  G.S. BETHELL ET AL.: JOURNAL OF THE CHEMICAL SOCIETY, PERKIN TRANSACTIONS 1, 1972, LETCHWORTH GB, pages 1033-1037, XP002069418;  K. BLUMBERG ET AL.: CARBOHYDRATE RESEARCH., vol. 88, 1981, AMSTERDAM NL, pages 253-256, XP002069414;  R. JOHNSON ET AL.: TETRAHEDRON LETTERS, vol. 33, no. 52, 1992, OXFORD GB, pages 8151-8154, XP002069415;  S. LAJSIC ET AL.: COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS., vol. 61, no. 2, 1996, PRAGUE CS, pages 298-304, XP002069417;  TAKANO I ET AL: "Location of double bond positions in conjugated alkadienes by electron impact mass spectrometry of 3,4-dimethylthio-substituted thiolane derivatives" AGRIC. BIOL. CHEM. (ABCHA6,00021369);89; VOL.53 (5); PP.1413-15, UNIV. TSUKUBA;INST. APPL. BIOCHEM.; TSUKUBA; 305; JAPAN (JP), XP002069412;  VINCENT M ET AL: "Determination of double-bond position in diunsaturated compounds by mass spectrometry of dimethyl disulfide derivatives" ANAL. CHEM. (ANCHAM,00032700);87; VOL.59 (5); PP.694-9, IST. GUIDO DONEGANI S.P.A.;NOVARA; 28100; ITALY (IT), XP002069413;  YOSHIDA J ET AL: "Electroinitiated oxygenation of alkenyl sulfides and alkynes in the presence of thiophenol" J. ORG. CHEM. (JOCEAH,00223263);93; VOL.58 (18); PP.4855-65, OSAKA CITY UNIV.;FAC. SCI.; OSAKA; 558; JAPAN (JP), XP002069411US5919951-A  "A Simple Two-Step Synthesis of a Novel, Fully Aromatic Ladder-Type Polymer" K. Chmil et al, Makromol. Chem Rapid Comm. 1993, 14, pp. 217-222.;  "Highly Conducting, Poly(2,5-Thienylene Vinylene) Prepared Via a Soluble Precursor Polymer" Jen et al, J. Chem. Soc. Chem. Comm. 1987 pp. 309-311.;  "Novel Approaches Toward Ninhydrin Analogs" R. Hark et al, Tetrahedron Letters, vol. 35, No. 42, pp. 7719-7722, 1994.;  "Synthesis and Properties of 2- or 2,5 Substituted Thiophene and 2- or 2,5'-Substituted Dithiophene Derivatives of Platinum" S. Kotani et al, Jour. of Organometallic Chemistry, 429 (1992) pp. 403-413.;  "The Palladium-Catalyzed Cross-Coupling Reactions of Organotin Reagents with Organic Electrophiles" J. Stille, Angew. Chem. Int. Ed. England 1986, pp. 508-524.US6124475-A  "A Simple Two-Step Synthesis of a Novel, Fully Aromatic Ladder-Type Polymer" K. Chmil et al, Makromol. Chem Rapid Comm. 1993, 14, pp. 217-222.;  "Highly conducting, Poly(2,5-Thienylene Vinylene) Prepared via a Soluble Precursor Polymer" Jen et al, J. Chem. Soc. Chem. Comm. 1987 pp. 309-311.;  "Novel Approaches Toward Ninhydrin Analogs" R. Hark et al, Tetrahedron Letters, vol. 35, No. 42, pp. 7719-7722, 1994.;  "Synthesis and Properties of 2- and 2,5 Substituted Thiophene and 2- and 2,5'-Substituted Dithiophene Derivatives of Platinum" S. Kotani et al, Jour. of Organometallic Chemistry, 429 (1992) pp. 403-413.;  "The Palladium-Catalyzed Cross-Coupling Reactions of Organotin Reagents with Organic Electrophiles" J. Stille, Angew. Chem. Int. Ed. England 1986, pp. 508-524.US6184540-B1  "A Simple Two-Step Synthesis Of A Novel, Fully Aromatic Ladder-Type Polymer" K. Chmil Et Al, Makromol. Chem Rapid Comm. 1993, 14, P.217-222.;  "Highly Conducting, Poly(2,5-Thienylene Vinylene) Prepared Via A Soluble Precursor Polymer" Jen Et Al, J. Chem. Soc. Chem. Comm. 1987 P. 309-311.;  "Novel Approaches Toward Ninhydrin Analogs" R. Hark Et Al, Tetrahedron Letters, vol. 35, No. 42, pp. 7719-7722, 1994.;  "Synthesis And Properties Of 2-or 2,5 Substituted Thiophene And 2-Or 2,5'Substituted Dithiophene Derivatives Of Platinum" S. Kotani Et Al, Jour. Of Organometallic Chemistry, 429 (1992) P. 403-413.;  "The Palladium-Catlyzed Cross-Coupling Reactions of Organotin Reagents With Organic Electrophiles" J. Stille, Angew. Chem. Int. Ed. England 1986. P. 508-524.EP867437-B1  DUCHER S ET AL: "Action of thiols on ethylenic.gamma.-lactones in an acidic or basic medium" BULL. SOC. CHIM. FR. (BSCFAS);73; (3)(PT. 2); PP.1037-42, U.E.R. SCI. EXACTES NAT.;GROUPE RECH. CHIM. ORG.; CLERMONT-FERRAND; FR., XP002069416;  G.S. BETHELL ET AL.: JOURNAL OF THE CHEMICAL SOCIETY, PERKIN TRANSACTIONS 1, 1972, LETCHWORTH GB, pages 1033-1037, XP002069418;  K. BLUMBERG ET AL.: CARBOHYDRATE RESEARCH., vol. 88, 1981, AMSTERDAM NL, pages 253-256, XP002069414;  KWAN-YUE JEN ET AL.: JOURNAL OF THE CHEMICAL SOCIETY, CHEMICAL COMMUNICATIONS, 1987, LETCHWORTH GB, page 309 XP002069419;  R. JOHNSON ET AL.: TETRAHEDRON LETTERS, vol. 33, no. 52, 1992, OXFORD GB, pages 8151-8154, XP002069415;  S. LAJSIC ET AL.: COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS., vol. 61, no. 2, 1996, PRAGUE CS, pages 298-304, XP002069417;  TAKANO I ET AL: "Location of double bond positions in conjugated alkadienes by electron impact mass spectrometry of 3,4-dimethylthio-substituted thiolane derivatives" AGRIC. BIOL. CHEM. (ABCHA6,00021369);89; VOL.53 (5); PP.1413-15, UNIV. TSUKUBA;INST. APPL. BIOCHEM.; TSUKUBA; 305; JAPAN (JP), XP002069412;  VINCENT M ET AL: "Determination of double-bond position in diunsaturated compounds by mass spectrometry of dimethyl disulfide derivatives" ANAL. CHEM. (ANCHAM,00032700);87; VOL.59 (5); PP.694-9, IST. GUIDO DONEGANI S.P.A.;NOVARA; 28100; ITALY (IT), XP002069413;  YOSHIDA J ET AL: "Electroinitiated oxygenation of alkenyl sulfides and alkynes in the presence of thiophenol" J. ORG. CHEM. (JOCEAH,00223263);93; VOL.58 (18); PP.4855-65, OSAKA CITY UNIV.;FAC. SCI.; OSAKA; 558; JAPAN (JP), XP002069411