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Home   •   Spotlight  •  rlist3q04p  •  Most Requested Patent Families 3Q04-Chemistry and Related Science (2)
Most Requested Patent Families 3Q04-Chemistry and Related Science
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Following is one of the patent documents most requested by researchers using CAS electronic products.



CAS indexed 177 chemical substances from this document.
CAS subject entries for this document include: Cyanation; Cyanation catalysts; Nitriles, preparation; and 5 additional concepts.

CAPLUS COPYRIGHT 2004 ACS on STN

TITLE: Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
INVENTOR(S): Buchwald, Stephen L.; Klapars, Artis; Kwong, Fuk Y.; Streiter, Eric; Zanon, Jacopo
PATENT ASSIGNEE(S): Massachusetts Institute of Technology, USA
SOURCE: PCT Int. Appl., 128 pp. CODEN: PIXXD2
LANGUAGE: English
PATENT INFORMATION:
PATENT NO.          KIND   DATE        APPLICATION NO.        DATE
---------------     ----   --------    --------------------   --------
WO 2004013094 A2 20040212 WO 2003-US23924 20030731 WO 2004013094 A3 20040826 W: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW, AM, AZ, BY, KG, KZ, MD, RU, TJ RW: GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR, BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG US 2004138468 A1 20040715 US 2003-631480 20030731

ABSTRACT:
ZSR [Z = (substituted) aryl, heteroaryl, alkenyl; R = (substituted) alkyl, cycloalkyl, aryl, heteroaryl, aralkyl, heteroaralkyl, alkenylalkyl, alkynylalkyl] were prepd. by reaction of ZX (Z as above; X = iodo, Br, Cl, alkylsulfonate, arylsulfonate) with HSR (R as above). Thus, 5-iodo-m-xylene, PhSH, CuI, K2CO3, ethylene glycol, and 2-propanol were heated at 80.degree. in a sealed tube for 20-24 h to obtain 92% 3,5-dimethylphenyl Ph sulfide.

 

Updated 5/9/2007 2:40:34 PM
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