Cob(I)alamin als Katalysator. 1. Mitteilung. Reduktion von gesättigten Nitrilen in wässeriger Lösung
作者:Albert Fischli
DOI:10.1002/hlca.19780610727
日期:1978.11.1
Co(I)alamin as Catalyst. 1. Communication. Reduction of Saturated Nitriles in Aqueous Solution
Co(I)阿拉明作为催化剂。1.沟通。还原水溶液中的饱和腈
Transition‐Metal‐Free Synthesis of Polyfunctional Triarylmethanes and 1,1‐Diarylalkanes by Sequential Cross‐Coupling of Benzal Diacetates with Organozinc Reagents
A variety of functionalized triarylmethane and 1,1‐diarylalkane derivatives were prepared via a transition‐metal‐free, one‐pot and two‐step procedure, involving the reaction of various benzal diacetates with organozincreagents. A sequential cross‐coupling is enabled by changing the solvent from THF to toluene, and a two‐step SN1‐type mechanism was proposed and evidenced by experimental studies. The
通过无过渡金属的一锅两步程序制备了各种官能化三芳基甲烷和1,1-二芳基烷烃衍生物,其中包括各种二乙酸苯亚缩酯与有机锌试剂的反应。通过将溶剂从 THF 更改为甲苯,可以实现顺序交叉偶联,并提出了两步 S N 1 型机理,并通过实验研究证明了这一点。该方法的合成效用通过几种生物学相关分子的合成得到进一步证明,例如抗结核剂、抗乳腺癌剂、鞘氨醇-1-磷酸(S1P)受体调节剂的前体和FLAP抑制剂。
The present invention pertains to pro-fragrances and relates to a pro-fragrance compound of the formula (I). Furthermore, the invention relates to compositions, a laundry product, a home care product, and an insect repellant, comprising the compound of formula (I). Also encompassed are a method for preparing the compound of formula (I) and uses of a compound of formula (I) for increasing the longlastingness of a fragrance, for increasing the stability and perception of a fragrance, and for improving the adhesion of a fragrance to textiles.
Provided are methods of producing refined silane compounds comprising providing a starting composition comprising a silane ester and an acidic halide and contacting the starting composition with an alkali metal salt selected from the group consisting of alkali metal salts derived from amides, imides, oxazolidinones, amines, sulfonamides, and combinations of two or more thereof.
Suggested is a cosmetic compositions comprising
(a) a crosspolymer obtained from copolymerisation of at least two different polyols and at least one dicarboxylic acid and
(b) at least one fragrance.