154544-66-8Relevant academic research and scientific papers
Preparation method of large-steric-hindrance alkyl substituted phosphite diester
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Paragraph 0048-0051, (2020/04/06)
The invention discloses a preparation method of large-steric-hindrance alkyl substituted phosphite diester, and relates to a novel method for preparing the large-steric-hindrance alkyl substituted phosphite diester compound which is difficult to synthesiz
One-Pot, Three-Component Approach to Diarylmethylphosphonates: A Direct Entry to Polycyclic Aromatic Systems
Prasad, Sure Siva,Singh, DIleep Kumar,Kim, Ikyon
supporting information, p. 6323 - 6336 (2019/05/24)
A new type of three-component reaction was developed consisting of aldehydes, electron-rich (hetero)arenes, and trialkyl phosphite, which provided facile access to a wide range of diarylmethylphosphonates under mild reaction conditions. Simple one- or two-step synthetic manipulation of the resulting compounds enabled us to reach several polycyclic (hetero)aromatic systems efficiently.
New ferrocenyl-containing organic hole-transporting materials for perovskite solar cells in regular (n-i-p) and inverted (p-i-n) architectures
Jia, Jingwen,Duan, Liangsheng,Chen, Yu,Zong, Xueping,Sun, Zhe,Wu, Quanping,Xue, Song
, p. 216 - 223 (2019/01/16)
Three triphenylamine derivatives containing ferrocenyl groups (JW6, JW7 and JW8) were synthesized by facile syntheses. Their HOMO levels match the valence band energy of CH3NH3PbI3. The introduction of ferrocenyl was aimed to obtain hole transporting materials with high mobility for perovskite solar cells. JW7 shows higher hole mobility (4.2 × 10?4 cm2 V?1 s?1) than JW6 (1.3 × 10?4 cm2 V?1 s?1) and JW8 (1.5 × 10?4 cm2 V?1 s?1). Their film-forming properties are affected by their molecule structures. The methoxyl and N,N-dimethyl terminal substituents of JW7 and JW8 are beneficial for having better solubility than JW6. The regular mesoporous TiO2-based perovskite solar cells (n-i-p) and the inverted planar heterojunction perovskite solar cells (p-i-n) fabricated using JW7 show the highest power conversion efficiency of 9.36% and 11.43% under 100 mW cm?2 AM1.5G solar illumination. For p-i-n cells, the standard HTM PEDOT-based cell reaches an efficiency of 12.86% under the same conditions.
Convenient synthesis of α-diarylmethylphosphonates by HOTf catalyzed Friedel-Crafts arylation of α-aryl α-hydroxyphosphonates
Chen, Long,Zou, Yun-Xiang,Fang, Xin-Yue,Yin, Xu
, p. 168 - 177 (2017/11/20)
We report a convenient catalytic Friedel-Crafts arylation of α-aryl α-hydroxyphosphonateswith various (hetero) aromatic compounds. HOTf (trifluoromethanesulfonic acid) is identified to be the best Br?nsted acid catalyst, and the desired α-diarylmethylphosphonates were obtained in up to 41–95% yield.
Efficient synthesis of α-substituted-α-arylmethyl phosphonates using trichloroacetimidate C–C coupling method
Fathalla, Walid,Pazdera, Pavel,El-Rayes, Samir,Ali, Ibrahim.A.I.
, p. 1681 - 1691 (2018/03/01)
A simple convenient protocol for the synthesis of diethyl α,α-diaryl methylphosphonate derivatives 5a-f, 6b-f, 7a-f and 8a-f, diethyl α-alkenyl α-aryl methylphosphonates 9a-d and 10a-d and α-(oxoalkyl) α-aryl methylphosphonate 11a-d and 12a-d is described. Trichloroacetimidates 3a-d were treated with activated arenes, styrene, allyltrimethylsilane or silylenol ethers C-nucleophiles in the presence TMSOTf to afford the desired products in good yields and short reaction time.
Synthesis and pharmacological study of new calcium antagonists analogues of cinnarizine and flunarizine
Younes, S.,Baziard-Mouysset, G.,Saqui-Sannes, G. de,Stigliani, J. L.,Payard, M.,et al.
, p. 943 - 948 (2007/10/02)
Several phosphonic diethyl esters were synthesized and their calcium antagonistic activity evaluated in vitro.The diethyl phosphonate group was condensed on substituted , , , , and groups.Despite the presence of the diethyl phosphonate moiety and the benzhydrylpiperazinyl group, both present in potent calcium antagonist structures, only 1 of the 19 synthesis compounds exhibited a calcium antagonistic profile. diethyl phosphonate / benzhydryl piperazine / calcium antagonist
