2-Mercapto-4-propyl

Pyrimidine 2,6-Dihydroxy-5-(3-mercapto-propyl)-4-methyl-E9b/2, 56 (2-Oxo — 3-Ac — thiolan + Urea)... 

Mercapto-l -methyl-ethyl)-1 -phenyl- E16a, 601 (R-NH-NH2 + Thiiran) 2-(2-Mercapto-propyl)-l -phenyl-E16a, 601 (R-NH-NH2 + Thiiran)... 

Benzol 3,5-Bis-[trifluormethyl]-l-(1,1 -dimethyl-2-mercapto-propyl)- E19a, 441 (N02 SH)... 

It is usually not necessary to change the surface activity of carbon blacks, whereas silicas demand special attention. For instance, it is necessary to treat silica before its use in SBR. Coupling agents like y-mercapto propyl triethoxy silanes allow the formation of strong bonds between silica and the polymer. However, strong chemical bonds are not always desirable. This is typically the case for silica/silicone rubber mixes where strong and unavoidable links lead to a hardening of the mix, which becomes brittle and cannot be reworked. In this case, a surface deactivation treatment of the silica is essential. 

Several specialized silica-based functionalized platinum scavengers such as N-acetyl-L-cysteine, 2-aminoethyl sulfide, 2-mercaptoethyl ethyl sulfide, 3-mercapto-propyl ethyl sulfide, pentaerythritol 2-mercaptoacetate ethyl sulfide and triamine ethyl sulfide amide, developed by Strem Chemicals, are also available. These scavengers are highly stable and available in pure forms, which successfully scavenge platinum metal ions in batch processes. 

Methoxy-1 -(2-mercapto-propyl)- 457 Methoxy-methyl- 581 4-Mcthoxy-l-methyl- 1157 2-Methoxymethyl-l-(methylmereaplo-acetyl)- 1024 4-Methoxymethylsulibn-l-methoxy- 1182 4-Methoxymethylsulfon-l -methyl- 1182 4-Mcthoxy- -phosphonsiiure-diathylester 1375... 

General Preparation of Methvl(mercaptopropvlsiloxv) dimethvlsiloxv Silicone Copolymers (Silicone thiols) Mixtures of tetrakis(mercapto-propyl)tetramethylcyclotetrasiloxane, octamethylcyclotetrasiloxane, deca-me yltetrasiloxane, and trifluoromethanesulfonic add were stirred under nitrogen at 100°C for twenty hours. The reaction mixtures were then cooled and diluted with toluene and washed with aqueous sodium bicarbonate. Concentration on a rotary evaporator followed by filtration diroug diatomaceous eartti yields the products as dear oils. 

Because these systems are used in ways that are different from their construction sealant counterparts, extensive studies on long-term adhesion have been carried out to evaluate adhesion promoters capable of giving long-term (15-30 years) service life. The most successful of these have been the alkyl silanes, specifically y-glycidoxy-propyl-trimethoxy-silane or mercapto-propyl-trimethoxy-silane, although some workers have found amino-substituted silanes to be preferable (see Silane adhesion promoters, Primers for sealants). 

Improvements in scorch safety have also been achieved by incorporation of mercapto-silanes, e.g. 3-mercapto-propyl trimethoxy silane (Baker and Newell, 1977). 

The basic idea for these synthesis routes (for details see ref Mennig, 1994a, 1994b, 1994c, 1995, 1997b Spanhel, 1992 Burkhart, 1994 Catalano, 1994 Schmitt, 1997) was to use functionalized silanes (aminosilanes Uke 3-ammo propyl triethoxy silane (APTS), A-(2-amino ethyl)-3-amino propyl trimethoxy silane (DIAMO), trimethoxy silyl propyl diethylen triamin (TRIAMO) or thiosilanes like 3-mercapto propyl trimethoxy silane... 

Si02-tethered rhodium complexes, derived from Rh(CO)2(acac) and 3-(mercapto) propyl- and 3-(l-thioureido)propyl-functionalized silica gel, were used as catalysts in the hydroformylation of various vinyl arenes and vinyl acetate. Conversions, che-moselectivity, and regioselectivity obtained with the Si02-tethered catalysts were comparable with those of the well-known homogeneous rhodium catalysts [85]. 

Hydrolytic fragmentation of the C5-N6 part took place upon heating 7-methyl-5-propyl-2-thioxo-l,2,4-triazolo[l,5-c]pyrimidine (129) with hydrochloric acid. 3-Acetonyl-5-mercapto-l,2,4-triazole (130) and butanoic acid were obtained as a result of N4-C5, C5-N6, and N6-C7 bond cleavages (65JCS3369) (Scheme 50). 

Abstract This presentation is a brief review on the resnlts of our work on iodine interaction with thioamides, selenoamides and amides. The thioamides, benzothia-zole-2-thione (BZT) (1), 6-n-propyl-2-thiouracil (PTU) (2), 5-chloro-2-mercap-tobenzothiazole (CMBZT) (3), N-methyl-benzothiazole-2-thione (NMBZT) (4), benzimidazole-2-thione (BZIM) (5), thiazolidine-2-thione (TZD) (6), 2-mercapto-pyridine (PYSH) (7), 2-mercapto-nicotinic acid (MNA) (8), 2-mercapto-benzoic acid (MBA) (9) and 2-mercapto-pyrimidine (PMT) (10) react with producing three type of complexes of formulae [(HL)IJ(l2) (HL= thioamide and n= 0, 1), [(HL) [I3 ] and [(HL-L)]+[l3 ]. The interaction of seleno-amides, derived from, 6-n-propyl-2-thiouracil (RSelJ) (R= Me- (11), Et- (12), n-Pr- (13) and i-Pr- (14)) with I, have also been studied and produced the complexes [(RSeU)IJ of spoke structure. These complexes are stable in non-polar solvents, but they decompose in polar solvents, producing dimeric diselenide compounds or undertake deselenation. 

CH2-CH(CHj)2 4-Hydroxy-2-mercapto-5-(2-methyl-propyl)-... 60 176 (Wasser/Ethanol)... 

CH2)3 —sch3 5-tert.-Butyl-2-mercapto-I-(3-methylthi -propyl)-... 28 122b... 

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