[EN] PROCESS FOR THE PREPARATION OF ALIPHATIC PRIMARY ALCOHOLS AND INTERMEDIATES IN SUCH PROCESS<br/>[FR] PROCEDE DE PREPARATION D'ALCOOLS PRIMAIRES ALIPHATIQUES ET DE PRODUITS INTERMEDIAIRES DANS UN TEL PROCEDE
申请人:DSM IP ASSETS BV
公开号:WO2005047221A1
公开(公告)日:2005-05-26
The invention relates to protected unsaturated alcohol with formula (R1 - O-)mPG, wherein R1 represents a linear, straight-chain aliphatic hydrocarbon group containing one or more double bonds and having 26-30 C-atoms, m is 1 or 2 and PG, forming an ether group in combination with the -O- of the former primary alcohol, represents a protecting group chosen from the group of substituted methyl ethers, substituted ethyl ethers, (substituted) benzyl ethers and (substituted) silyl ethers with at least one substituent on the Si-atom being not a methyl group, in case m=1; and a diol protecting group in case m=2; A protected saturated alcohol with formula (R2 - O -)mPG, herein R2 represents a linear straight-chain alkyl group with 26-30 C-atoms and PG and m are as defined above; unsaturated alcohols with formula R1OH wherein R1 represents a linear, straight-chain aliphatic hydrocarbon group containing one, two or three double bonds and having 27 C-atoms, a linear, straight-chain aliphatic hydrocarbon group containing one or more double bonds and having 28 C-atoms with the proviso that when R1 has one double bond which is between C18 and C19 or between C19 and C20, R1OH has the E-configuration, or a linear, straight-chain aliphatic hydrocarbon group containing two or three double bonds and having 26-29 C-atoms. The invention further relates to processes for the preparation of such protected unsaturated alcohols via an organometallic cross coupling reaction, a Wittig reaction via Olefin Cross Metathesis.
该发明涉及具有以下结构的受保护的不饱和醇(R1 - O-)mPG,其中R1代表含有一个或多个双键且具有26-30个碳原子的线性直链脂肪烃基,m为1或2,PG与前述初级醇的-O-结合形成醚基,PG代表从取代甲基醚、取代乙基醚、(取代)苄基醚和(取代)硅烷基醚组中选择的保护基,其中Si原子上至少一个取代基不是甲基,当m=1时;m=2时,代表二元醇保护基;具有以下结构的受保护饱和醇(R2 - O -)mPG,其中R2代表含有26-30个碳原子的线性直链烷基,PG和m如上定义;具有结构R1OH的不饱和醇,其中R1代表含有一个、两个或三个双键且具有27个碳原子的线性直链脂肪烃基,含有一个或多个双键且具有28个碳原子的线性直链脂肪烃基,但当R1具有一个双键位于C18和C19之间或位于C19和C20之间时,R1OH具有E构型,或者含有两个或三个双键且具有26-29个碳原子的线性直链脂肪烃基。该发明还涉及通过有机金属交叉偶联反应、维特希反应或烯烃交叉甲醚反应制备这种受保护的不饱和醇的方法。