ʻO N,N-dimethyl-1,3-propanediamine (ma hope aku nei i kapa ʻia ʻo DMAPA) he diamine aliphatic haʻahaʻa me nā hui amino tertiary a me nā hui amino mua i loko o ka mole. He wai ʻole kala a moakaka hoʻi me kahi ʻala ammonia. Ua puhi ia i ka lewa a hiki ke hoʻoheheʻe ʻia i ka wai a me nā mea hoʻoheheʻe organik. ʻO kona ʻano molekala ʻo C5H14N2 a ʻo kona ʻano hoʻonohonoho ʻo (CH3)2NCH2CH2CH2NH2.
ʻO ia kekahi o nā ʻano koʻikoʻi o nā hui amine momona a me kahi mea maka organik koʻikoʻi waena. Hoʻohana nui ʻia ia i nā kemika o kēlā me kēia lā, nā pesticides, nā dyes, nā resins, a me nā mea ʻē aʻe. I kēia manawa, ʻo ka hapa nui o DMAPA ma Kina e hoʻohana nui ʻia e hoʻomākaukau i ka betaine a me ka amidopropyldimethylamine, i hoʻohana ʻia i nā huahana kemika o kēlā me kēia lā e like me ka shampoo, ka gel ʻauʻau, ka gel ʻauʻau pēpē, ka conditioner, ke kopa wai a me ka detergent. Eia kekahi, hoʻohana ʻia ka DMAPA ma ke ʻano he mea hoʻoulu polyurethane, ka mea hoʻōla resin epoxy a me ka mea hoʻolalelale, a ma ka hana ʻana i nā dyes.

ʻO ke ala hana nui o DMAPA: 1. Me ka hoʻohana ʻana i ka dimethylamine a me ka acrylonitrile ma ke ʻano he mea maka, loaʻa ka dimethylaminopropionitrile (DMAPN) ma o ka hoʻohui ʻana o Michael. I ke kaʻina hana o ka hoʻomākaukau ʻana o DMAPN, ma kahi o 2% o ka nui o nā mea maka i hoʻohui ʻia i ka wai e hoʻolaha i ka hopena hoʻohui a wehe i ka dimethylamine keu azeotropically; 2. ʻO ka DMAPN i loaʻa ma o ka distillation i ka hana mua ua hydrogenated catalytically ma lalo o nā kūlana kaomi kiʻekiʻe. Hoʻomākaukau ʻana o DMAPA

Ma ka lua o ka hana o ka hydrogenation e hoʻomākaukau ai i ka DMAPA, e hana ʻia kahi hopena ʻaoʻao. ʻO nā huahana ʻaoʻao o kēia hopena, ʻo ia ka amine bis-DMAPA lua a me ka amine tri-DMAPA tertiary. I kēia manawa, hoʻohana nui ka hana kūloko o DMAPA i ka hopena kettle, a ʻo ka mea hoʻoulu hydrogenation he pauka Raney nickel. I mea e kāohi ai i ka hoʻokumu ʻia ʻana o kēia huahana ʻaoʻao, pono e hoʻohui i ka 12%-16% o ka nui o ka mea hoʻoulu o ka hopena wai alkali caustic a i ʻole ka ammonia wai, ka hopena wai alkali caustic a me ka ammonia wai. ʻO ka hoʻohana ʻana e hana i ka nui o ka wai neoneo a me ka wai neoneo, he paʻakikī ke hoʻohaʻahaʻa a hana, e hoʻonui ana i ke kaumaha o ka hana ma hope.

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