- Stereochemical Models for Discussing Additions to alpha,beta-Unsaturated Aldehydes Organocatalyzed by Diarylprolinol or Imidazolidinone Derivatives - Is There an '(E)/(Z)-Dilemma'?
[作者：Seebach, D; Gilmour, R; Groselj, U; Deniau, G; Sparr, C; Ebert, MO; Beck, AK; McCusker, LB; Sisak, D; Uchimaru, T,期刊：Helvetica Chimica Acta, 页码：603-634 , 文章类型： Article，,卷期：2010年93-4]
- The structures of iminium salts formed from diarylprolinol or imidazolidinone derivatives and alpha,beta-unsaturated aldehydes have been studied by X-ray powder diffraction (Fig. 1), single-crystal X-ray analyses (Table ...
- New Synthetic Routes to Biologically Interesting Geranylated Flavanones and Geranylated Chalcones: First Total Synthesis of (+/-)-Prostratol F, Xanthoangelol, and (+/-)-Lespeol
[作者：Jung, DH; Lee, YR; Kim, SH,期刊：Helvetica Chimica Acta, 页码：635-647 , 文章类型： Article，,卷期：2010年93-4]
- A new and efficient synthetic approach to biologically interesting geranylated flavanones and geranylated chalcones is described. Thus, the first total syntheses of the geranylated flavanones (+/-)-prostratol F (1), (+/-...
- Solvent-Free Synthesis of Diphenyl [2-(Aminocarbonyl)-1,2-dihydroisoquinolin-1-yl]phosphonates from Isoquinoline, Isocyanates, and Diphenyl Phosphonate
[作者：Yavari, I; Mirzaei, A; Khalili, G,期刊：Helvetica Chimica Acta, 页码：654-658 , 文章类型： Article，,卷期：2010年93-4]
- The 1:1 intermediates generated by addition of isoquinoline to isocyanates were trapped by diphenyl phosphonate to yield diphenyl [2-(aminocarbonyl)-1,2-dihydroisoquinolin-1-yl]phosphonates in good yields under solvent-f...
- Oligonucleotide Analogues with Integrated Bases and Backbones Part 23 Conformational Analysis and Association of Sulfonyl- and Sulfinylmethylene Adenosine and Uridine Dinucleosides
[作者：Bogliotti, N; Bernet, B; Vasella, A,期刊：Helvetica Chimica Acta, 页码：659-667 , 文章类型： Article，,卷期：2010年93-4]
- The sulfone 2, and the sulfoxides (S)-3 and (R)-3 were obtained by oxidation of the thiomethylene-linked A*[s]U dinucleoside 1. Conformational analysis and association studies of 2, (S)-3, and (R)-3 reveal a strong influ...
- Oligonucleotide Analogues with Integrated Bases and Backbones Part 24 Synthesis, Conformational Analysis, and Association of Aminomethylene-Linked Self-Complementary Adenosine and Uridine Dinucleosides
[作者：Chiesa, K; Shvoryna, A; Bernet, B; Vasella, A,期刊：Helvetica Chimica Acta, 页码：668-691 , 文章类型： Article，,卷期：2010年93-4]
- Inspection of Maruzen models and force-field calculations suggest that oligonucleotide analogues integrating backbone and bases (ONIBs) with an aminomethylene linker form similar cyclic duplexes as the analogous oxymethy...
- Guaiane Sesquiterpenoids Isolated from the Fruits of Torilis japonica and Their Cytotoxic Activity
[作者：Kim, DC; Kim, JA; Min, BS; Jang, TS; Na, M; Lee, SH,期刊：Helvetica Chimica Acta, 页码：692-697 , 文章类型： Article，,卷期：2010年93-4]
- Two new guaiane sesquiterpenoids, 11-(acetyloxy)-1,8-dihydroxyguai-4-en-3-one (5) and (1 alpha,6 beta)-1,6-dihydroxytorilin (6), were isolated from the fruits of Thrills japonica (Umbelliferae), along with four known ses...
- Three New Limonoids from the Leaves of Cipadessa cinerascens
[作者：Zhang, ZG; Yao, K; Hu, GL; Zhang, J,期刊：Helvetica Chimica Acta, 页码：698-703 , 文章类型： Article，,卷期：2010年93-4]
- Three new limonoids, cipadesins G-I (1-3), together with four known ones, were isolated from the leaves of Cipadessa cinerascens. Their structures were elucidated on the basis of 1D- and 2D-NMR data.
- Regioselective Synthesis of 4-(Arylsulfanyl)-2-hydroxyhomophthalates by [4+2] Cycloaddition of 3-(Arylsulfanyl)-1-(trimethylsilyloxy)buta-1,3-dienes with Dimethyl Penta-2,3-dienedioate
[作者：Imran, M; Iqbal, I; Fischer, C; Langer, P,期刊：Helvetica Chimica Acta, 页码：704-710 , 文章类型： Article，,卷期：2010年93-4]
- The [4+2] cycloaddition of 3-(arylsulfanyl)-1-(trimethylsilyloxy)buta-1,3-dienes with dimethyl penta-2,3-dienedioate provides a convenient and regioselective approach to a variety of 4-(arylsulfanyl)-2-hydroxyhomophthala...
- Pronounced Catalytic Activity of Manganese(III) - Schiff Base Complexes in the Oxidation of Alcohols by Tetrabutylammonium Peroxomonosulfate
[作者：Rezaeifard, A; Jafarpour, M; Nasseri, MA; Haddad, R,期刊：Helvetica Chimica Acta, 页码：711-717 , 文章类型： Article，,卷期：2010年93-4]
- A novel and practical catalytic method for efficient and highly selective oxidation of a wide range of benzylic, allylic, aliphatic, primary, and secondary alcohols to the corresponding aldehydes and ketones using tetrab...
- Three New Monoterpene Alkaloids and a New Caffeic Acid Ester from Incarvillea mairei var. multifoliolata
[作者：Xing, AT; Tian, JM; Liu, CM; Li, HL; Zhang, WD; Shan, L,期刊：Helvetica Chimica Acta, 页码：718-723 , 文章类型： Article，,卷期：2010年93-4]
- Three new monoterpene alkaloids, mairine A (1), mairine B (2), and mairine C (3), and a new caffeic acid ester, 2-(1-hydroxy-4,4-dimethoxycyclohexyl)ethyl caffeate (4), were isolated from the EtOH extract of the whole pl...
- Norlignans from Rhizomes of Curculigo sinensis
[作者：Li, N; Wang, TM; Wang, KJ; Zhao, YX,期刊：Helvetica Chimica Acta, 页码：724-728 , 文章类型： Article，,卷期：2010年93-4]
- Two novel norlignans, sinensigenins A and B (1 and 2, resp.), were isolated from the rhizomes of Curculigo sinensis, together with six known norlignans, crassifogenin B (3), cucapitoside (4), crassifoside B (5), crassifo...
- New Cytotoxic Myrsinane-Type Diterpenes from Euphorbia prolifera
[作者：Li, J; Xu, L; Wang, FP,期刊：Helvetica Chimica Acta, 页码：746-752 , 文章类型： Article，,卷期：2010年93-4]
- Four new myrsinol diterpenes, proliferins A-D (1-4, resp.) were isolated from the EtOH extracts of the roots of Euphorbia prolifera. along with four known compounds, euphorprolitherin B (5). euphorprolitherin D (6), SPr5...
- Two Novel 15(10 -> 1)Abeomuurolane Sesquiterpenes from Cosmos sulphureus
[作者：Wu, JH; Chang, YF; Tung, YT; Tsuzuki, M; Izuka, A; Wang, SY; Kuo, YH,期刊：Helvetica Chimica Acta, 页码：753-756 , 文章类型： Article，,卷期：2010年93-4]
- Two novel 15(10 -> 1)abeomuurolane sesquiterpenes, cosmosoic acid (1) and cosmosaldehyde (2), were isolated from the whole plant of Cosmos sulfurous. Their structures were established by a combination of 1D- and 2D-NMR s...
- Chemoselective and Regiospecific Synthesis of Iminospiro-gamma-lactones from Maleic Anhydride or Citraconic Anhydride and Alkyl Isocyanides with Dialkyl Acetylenedicarboxylates
[作者：Bayat, M; Imanieh, H; Abbasi, H,期刊：Helvetica Chimica Acta, 页码：757-762 , 文章类型： Article，,卷期：2010年93-4]
- Isocyanides, dialkyl acetylenedicarboxylates (=dialkyl but-2-ynedioates), and anhydrides such as maleic anhydride (= furan-2,3-dione) or citraconic anhydride (= 3-methylfuran-2,3-dione) react in one pot to afford novel i...
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