1 2 3 4 5-Pentamethylcyclopentadiene（CAS# 4045-44-7)

Kupu Whakataki

Ko te 1,2,3,4,5-Pentamethylcyclopentadiene (e mohiotia ana ko te pentaheptadiene) he puhui waro. E whai ake nei he kupu whakataki mo ona rawa, ona whakamahinga, tikanga hanga me nga korero haumaru:

Kounga:

Ko te 1,2,3,4,5-Pentamethylcyclopentadiene he wai kore tae me te kakara motuhake. He iti ake te matotoru, he kore e rewa ki te wai, he memeha i roto i nga whakarewa pararopi noa.

Whakamahia:

Ko te 1,2,3,4,5-Pentamethylcyclopentadiene he maha nga tono mo te matū. Ka taea te whakamahi hei rauemi timatanga me te takawaenga i roto i te whakahiato waro mo te whakahiato o etahi atu puhui waro.

Tikanga:

Ko te 1,2,3,4,5-Pentamethylcyclopentadiene ka taea te whakahiato ma te maha o nga tikanga. Ko nga tikanga whakarite noa ko enei e whai ake nei:

Te tauhohenga na roto i te cyclopentene: ka whakamahia te cyclopentene me te methylation reagents (pēnei i te methyl bromide) ki te tauhohe i raro i nga tikanga kawakore ki te whakaputa 1-methylcyclopentene, katahi ka whakahiatotia te 1,2,3,4,5-pentamethylcyclopentadiene na roto i te tauhohenga methylation.

He tauhohenga hanga here waro-wao i whakakorikorihia e te whakakōkī whakarewa.

Mōhiohio Haumaru:

Ko te 1,2,3,4,5-pentamethylcyclopentadiene etahi o nga kino, a he mea tika kia aro ki te haumaru ina whakamahi. Anei etahi o nga tupono haumarutanga pea:

He wai e mura ana, me waiho kia matara atu i nga mura ahi me nga puna wera teitei.

A ape i te hongi i ona kohu, whakamahia ki te waahi hau pai, me te whakamahi taputapu whakamarumaru whaiaro tika (hei tauira, te whakamarumaru manawa).

Ka taea e ia te urupare kino ki nga matū waikura kaha me nga waikawa kaha, ka puta he ahi, he pahūtanga ranei.

Kia tupato ki te whakamahi me te hapai i runga i nga tikanga whakahaere haumaru.