Amines lactone group reaction with

Reaction of the Lactone Group with Ammonia and Amines... 

Telechelic polymers, containing one or more end groups with the capacity to react with other molecules, are useful for synthesizing block and other copolymers [Fontanille, 1989 Hsieh and Quirk, 1996 Nuyken and Pask, 1989 Pantazis et al., 2003 Patil et al., 1998 Quirk et al., 1989, 1996 Rempp et al., 1988]. Living anionic polymers can be terminated with a variety of electrophilic reagents to yield telechelic polymers. For example, reaction with carbon dioxide, ethylene oxide, and allyl bromide yield polymers terminated with carboxyl, hydroxyl, and allyl groups, respectively. Functionalization with hydroxyl or carboxyl groups can also be achieved by reaction with a lactone or anhydride, respectively. Polymers with amine end... 

Ethers in which at least one group is primary alkyl can be oxidized to the corresponding carboxylic esters in high yields with ruthenium tetroxide.297 Cyclic ethers give lactones. The reaction, a special case of 9-16, has also been accomplished with CrO, in sulfuric acid.39" with benzyltriethylammonium permanganate,299 and with trichloroisocyanuric acid in the presence of an excess of water.300 In a similar reaction, cyclic tertiary amines (e.g., 28) can... 

There are also several reactive diluents that do not contain epoxy groups. These are represented by triphenyl phosphite and y-butyrolactone (Fig. 6.7). The phosphite is a low-viscosity colorless liquid, which is sensitive to moisture. It reacts with hydroxyl groups in the resin. The y-butyrolactone is a very effective viscosity reducer. It can reduce the viscosity of a liquid DGEBA from about 15,000 to 2000 cP with only 10 pph. In the curing reaction with amines (Fig. 6.8), the lactone forms an amide, which can then crosslink with the polymer via the hydroxyl groups. 

Similarly, urea A, 0-acctal 64 undergoes condensation reaction with weak carbon acids to afford acyclic 1,1-enediamines with the elimination of alcohol and amine , A number of active methyl compounds such as an aliphatic ketone, acetophenone, imino ester and thioacetoamide has been successfully converted to 1,1-enediamines. Lactones, lactams and thiolactams condense with 64 to give enediamines 65 in moderate yields (equation 24). Very weakly activated methyl groups are also reactive towards urea A(,<9-acetal 64, and 1,1-enediamines 66-71 are prepared from the corresponding re-actants ". ... 

Cw-Disubstituted butyrolactones (50) have been investigated less extensively than their /ra/i -counterparts. One attractive route to such compounds involves the diastereoselective opening of a cyclic meso-anhydride (49) (scheme 15) [67]. The required anhydride was prepared by a route involving two consecutive Stobbe condensations, leading to the doubly unsaturated anhydride (48). Differentiation of the two acyl groups of (49) was achieved by reaction with an enantiomerically pure primary amine. The monoacid monoamide was then converted into the required lactone (50). 

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