Organic tellurium compound, process for producing the same,...

Details Organic tellurium compound, process for producing the same,... Organic tellurium compound, process for producing the same,...

2007-07-27

2010-02-16

Wu, David (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C522S049000, C528S403000, C528S407000, C562S899000

Reexamination Certificate

active

07662899

ABSTRACT:
An organotellurium compound of the formula (1) is useful as a living radical polymerization initiator and makes possible precision control of molecular weights and molecular weight distributions under mild conditionswherein R1is C1-C8alkyl, R2and R3are each a hydrogen atom or C1-C8alkyl, and R4is aryl, substituted aryl, aromatic heterocyclic group, hydroxycarbonyl or cyano.

REFERENCES:
patent: 2002/0061991 (2002-05-01), Charmot et al.
Yamago et al. “Tailored Synthesis of Structurally Defined polymers by Organotellurium-Mediated Living Radical Polymerization: Synthesis of Poly(meth)acrylate Derivatives and Their Di- and Triblock Copolymers”, Journal of American Chemical Society, 2002, 124, 13666-13667.
Kanda et al. “Generation of allyl- and benzyllithiums from the corresponding halides by the aid of lithium-tellurium exchange reactions”, Journal of Organometallic Chemistry, 473 (1994), 71-83.
Lars Engman et al., “Toward Novel Antioxidants: Preparation of Dihydrotellurophenes and Selenophenes by Alkyltelluride-Mediated Tandem SRN1/SHi Reactions”, Journal of Organic Chemistry, vol. 64, pp. 6764-6770, XP002352862, 1999.
Melissa J. Laws et al., “Intramolecular Homolytic Substitution at Tellurium: Preparation of a Dihydrotellurophene by Alkyltelluride-Mediated SRN1/SHi Reactions”, Tetrahedron Letters, vol. 38, No. 48, pp. 8429-8432, 1997.
Shigeru Yamago et al., “Organotellurium Compounds as Novel Initiators for Controlled/Living Radical Polymerizations. Synthesis of Functionalized Polystyrenes and End-Group Modification”, Journal of the American Chemical Society, 124(12), pp. 2874-2875, 2002, Mar. 27, 2002.
Takahiro Kanda et al., “Generation of allyl- and benzyllithiums from the corresponding halides by the aid of lithium-tellurium exchange reactions”, Journal of Organometallic Chemistry, 473(1-2), pp. 71-83 (1994).
Mary Ann Wagner et al., “Monomeric Sarcosine Oxidase: 1. Flavin Reactivity and Active Site Binding Determinants”, Biochemistry, 39(30), pp. 8813-8824, 2000.
Li-Biao Han et al., “Carbotelluration of alkynes”, Journal of the American Chemical Society, 114(19), pp. 7591-7592, 1992.
Louis A. Silks, III et al., “Synthesis and125Te NMR Spectroscopy of α-Tellurocarbonyl compounds and derivatives”, Synthetic Communications, 21(8-9), pp. 1105-1119, 1991.
Yuqing Ho et al., “A New Synthesis of α-aryltelluro esters”, Synthetic Communications, 19(9-10), pp. 1625-1629, 1989.

Affiliated with

Also associated with

Rating

Organic tellurium compound, process for producing the same,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organic tellurium compound, process for producing the same,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic tellurium compound, process for producing the same,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4171574