有哪些信誉好的足球投注网站- 1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
- 2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
- 4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
- 5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
- 6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
- 7、VIP文档为合作方或网友上传，每下载1次， 网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
查看更多
synthesis of bis (1-methyl-2-octynyl) etherbis(1-methyl-2-octynyl)醚的合成
Molbank 2009, M612 OPEN ACCESS molbank ISSN 1422-8599 /journal/molbank Short Note Synthesis of Bis (1-Methyl-2-octynyl) Ether David Díaz Díaz * and Víctor S. Martín Instituto Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Avda, Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain * Author to whom correspondence should be addressed; E-Mail: DDDchemistry@ Received: 18 July 2009 / Accepted: 4 August 2009 / Published: 5 August 2009 Abstract: The synthesis of bis (1-methyl-2-octynyl) ether using two secondary alcohols under Nicholas reaction conditions is reported. The reaction is possible due to a catalytic participation of the Lewis acid when the nucleophilic alcohol is protected as a THPO-ether. Keywords: Nicholas reaction; cobalt; alkyne complexes The reaction of a dicobalt octacarbonyl-stabilized propargylic cation with a nucleophile, followed by oxidative demetallation to yield propargylated products (Nicholas reaction) has been proved to be a versatile synthetic tool in organic synthesis [ 1–4]. This process has been used to prepare both symmetrical and unsymmetrical propargylic ethers [5], which are particularly important due to the wide range of functional group interconversions that the triple bond permits [6]. Nevertheless, when the propargylic cation is formed using a secondary alcohol, only primary alcohols are effective as nucleophiles to yield the correspo
您可能关注的文档
- surviving sepsis a guide to the guidelines幸存的脓毒症指南的指导方针.pdf
- survival of the fittest overcoming oxidative stress at the extremes of acid, heat and metal适者生存克服极端的酸氧化应激,热量和金属.pdf
- survivors of war in northern kosovo (iii) the role of anger and hatred in pain and ptsd and their interactive effects on career outcome, quality of sleep and suicide ideation战争的幸存者在科索沃北部(iii)愤怒和仇恨的痛苦和创伤后应激障碍的角色和他们的互动对职业生涯的影响结果,睡眠质量和自杀意念.pdf
- survivorship during starvation for cimex lectularius l.生存在饥饿臭虫l。.pdf
- surviving chytridiomycosis differential anti-batrachochytrium dendrobatidis activity in bacterial isolates from three lowland species of atelopus幸存的壶微分anti-batrachochytrium细菌分离菌的活动三个atelopus低地物种.pdf
- susceptibility of mycobacterium immunogenum and pseudomonas fluorescens to formaldehyde and non-formaldehyde biocides in semi-synthetic metalworking fluids易感性immunogenum分枝杆菌和假单胞菌的荧光半合成金属加工液中甲醛和non-formaldehyde农药.pdf
- susceptibility of primary htlv-1 isolates from patients with htlv-1-associated myelopathy to reverse transcriptase inhibitors患者易感性初级htlv 1分离htlv-1-associated脊髓病逆转录酶抑制剂.pdf
- susceptibility of rheumatoid arthritis synovial fibroblasts to fasl- and trail-induced apoptosis is cell cycle-dependent易感性的类风湿性关节炎滑膜成纤维细胞faslu2014u2014trail-induced细胞凋亡是细胞随周期变动.pdf
- susceptibility of schizophrenia and affective disorder not associated with loci on chromosome 6q in han chinese population精神分裂症和情感障碍的易感性与6号染色体上的基因座在汉族人口问.pdf
- susceptibility patterns and cross resistances of antibiotics against pseudomonas aeruginosa in a teaching hospital of turkey易感性模式和交叉抗性的抗生素对铜绿假单胞菌在土耳其的教学医院.pdf
- synthesis of biotin linkers with the activated triple bond donor [p-(n-propynoylamino)toluic acid] (pata) for efficient biotinylation of peptides and oligonucleotides合成生物素和激活链接器三键捐赠(p -(n-propynoylamino)甲苯酸)(pata)高效生物素酰化肽与寡核苷酸.pdf
- synthesis of bis-ureas from bis(o-nitrophenyl) carbonate合成的bis-ureas bis(o-nitrophenyl)碳酸盐.pdf
- synthesis of both ionic species of ammonium dithiocarbamate derived cholic acid moieties合成的胆酸衍生的二硫代氨基甲酸铵根离子物种.pdf
- synthesis of brushite particles in reverse microemulsions of the biosurfactant surfactin反向状的透钙磷石粒子的合成生物表面活性剂surfactin.pdf
- synthesis of bioactive microcapsules using a microfluidic device使用微流体装置合成生物活性微胶囊.pdf
- synthesis of certain pyrimidine derivatives as antimicrobial agents and anti-inflammatory agents某些嘧啶衍生物的合成抗菌药物和抗炎剂.pdf
- synthesis of carbon nanotube (cnt) composite membranes合成的碳纳米管(cnt)复合膜.pdf
- synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (ii) ions合成一种新型荧光传感器轴承丹磺酰荧光团的高度选择性检测汞离子(ii).pdf
- synthesis of chiral building blocks for use in drug discovery合成手性药物发现中使用的构建块.pdf
- synthesis of diblock copolymer consisting of poly(4-butyltriphenylamine) and morphological control in photovoltaic application合成diblock共聚物组成的聚(4-butyltriphenylamine)和形态控制光伏应用程序.pdf
文档评论（0）