3913-02-8Relevant articles and documents
COSMETIC EXCIPIENT INCLUDING A C8-C10 ALKANE AND A C>= 11 ALKANES
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Paragraph 0319-0326, (2021/05/28)
A cosmetic excipient including an alkane mixture, the alkane mixture including at least one C8-C10 alkane, and at least one C≥11 alkane, wherein the at least one C8-C10 alkane is present in a percentage by mass less than or equal to approximately 40% (≤40%), relative to the total mass of the alkane mixture.
Synthetic method for preparing isododecanol polyoxyethylene ether from hexyl alcohol
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Paragraph 0011; 0013; 0015; 0017, (2020/05/01)
The invention relates to a synthetic method for preparing isododecanol polyoxyethylene ether from hexyl alcohol. The invention belongs to the technical field of synthesis of nonionic surfactants in organic chemistry. The synthetic method comprises the following steps: (1) by using hexyl alcohol as an initiator, adding a catalyst under the protection of nitrogen to carry out aldol condensation reaction, thereby obtaining isododecanol; and (2) under the action of a catalyst, carrying out an induction reaction on the isododecanol prepared in the step (1) and part of ethylene oxide, and carrying out a polymerization reaction on the remaining ethylene oxide to obtain the isododecanol polyoxyethylene ether.
IMPROVED PROCESS FOR THE TRANSFORMATION OF PRIMARY ALIPHATIC ALCOHOLS INTO HIGHER ALIPHATIC ALCOHOLS
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Page/Page column 19-21, (2019/10/30)
A process for obtaining higher aliphatic alcohols starting from aliphatic primary alcohols by condensation reactions is disclosed. Specifically, the process comprises a step in which an aliphatic primary alcohol is contacted in a homogeneous phase with a catalyst mixture comprising a transition metal, a base and an additive; specifically, this additive can be selected from the classes of compounds of the isoquinolines N-oxide, quinolines N-oxide, pyridines N-oxide, benzoquinones, naphthoquinones, or TEMPO. In particular, the process can be carried out by contacting said aliphatic primary alcohol with a catalyst of a recycled transition metal, with a freshly added base and with a recycled additive of the aforementioned type.