申请人:Dubois Jean-Luc
公开号:US20100168453A1
公开(公告)日:2010-07-01
The invention relates to a method for the synthesis of amino acids/esters of general formula NH
2
—(CH
2
)
n
—COOR in which n is an integer between 5 and 14, and R is either H or an alkyl radical including from 1 to 4 carbon atoms, from natural long-chain mono-unsaturated fatty acids or esters including at least 10 adjacent carbon atoms per molecule, said method comprising: first converting, if necessary, said natural long-chain fatty acid or ester into a monounsaturated fatty acid/ester of general formula R
1
—(CH
2
)
m
—CH═CH—(CH
2
)
p
—COOR in which R
1
is H, CH
3
or a COOR radical, m is an integer between 0 and 14 and p is an integer between 2 and 11, then submitting the latter to a crossed catalytic metathesis reaction with a compound of formula R
2
—CH═CH—R
3
in which R
2
is either H or CN and R
3
is CN or CH
2
NH
2
, provided that if R
2
is CN, R
3
can be only CN, and finally converting the resulting product of the general formula R
3
—CH═CH—(CH
2
)
p
—COOR into an amino-acid, either by hydrogenation, or by hydrogenation of the triple terminal bond, or by amination of the double terminal bond.
本发明涉及一种合成通式为NH2—(CH2)n—COOR的氨基酸/酯的方法,其中n为5至14之间的整数,R为H或包括1至4个碳原子的烷基基团,所述方法包括:首先,如果必要,将天然长链脂肪酸或酯转化为通式为R1—(CH2)m—CH═CH—(CH2)p—COOR的单不饱和脂肪酸/酯,其中R1为H,CH3或COOR基团,m为0至14之间的整数,p为2至11之间的整数;然后,将后者与通式为R2—CH═CH—R3的化合物进行交叉催化复分解反应,其中R2为H或CN,R3为CN或CH2NH2,如果R2为CN,则R3只能为CN;最后,将得到的通式为R3—CH═CH—(CH2)p—COOR的产品转化为氨基酸,可以通过氢化,或通过氢化末端的三键,或通过末端的双键的氨基化来实现。