176,921 research outputs found
Silver-Mediated Direct sp(3) C-H Bond Functionalization
No full textDirect sp(3) C-H bond functionalization is an efficient, straightforward, and powerful method to construct new C-X (X = C, N, F, S) bonds from nonfunctionalized aliphatic motif of organic molecules, which has been used in late-stage modification of complex molecules. In this chapter, the recent developments of silver-mediated direct sp(3) C-H functionalizations are reviewed, categorized by C-C bond formation (C-H insertion), C-N bond formation (intramolecular and intermolecular amination/amidation), C-F bond formation, and C-S bond formation.SCI(E)[email protected]
Texas Bond Review Board Annual Report
No full textThis report describes states financial in fiscal 2021, issuance cost, private activity bond and 86th legislature session, This report concludes with seven appendices. Appendix A provides a detailed description of each state bond transaction closed in fiscal year 2021. Appendix B reports on commercial paper and variable-rate debt programs used by state agencies and universities. Appendix C provides a background discussion of Texas Swap Programs and reports on swaps outstanding and debt-service requirements
Texas Bond Review Board Annual Report
No full textThis report describes states financial in fiscal 2020, issuance cost, private activity bond and 86th legislature session, This report concludes with seven appendices. Appendix A provides a detailed description of each state bond transaction closed in fiscal year 2020. Appendix B reports on commercial paper and variable-rate debt programs used by state agencies and universities. Appendix C provides a background discussion of Texas Swap Programs and reports on swaps outstanding and debt-service requirements
FINANCING COMMUNITY FACILITIES: A CASE STUDY OF THE PARKS AND RECREATIONAL GENERAL OBLIGATION BOND MEASURE OF SAN JOSE, CALIFORNIA
No full textThis study of the City of San Jose’s Parks and Recreation General Obligation (GO) Bond Measure seeks to identify the politics-, management-, and planning-related lessons learned by the City as it developed its community facilities using the GO bonds proceeds. The study finds that these lessons include: be conservative in what you promise the residents; be prepared for changes in economic environment by identifying supplementary funding sources should the primary source not yield adequate funds; make sure that the jurisdiction is organizationally capable of handling the increased workload; and prepare detailed project plans prior to the bond issuance.Community Infrastructure and Services; Municipal Bonds; Public Finance
Letter from C. L. Bond to S. B. Simmons
No full textLetter from C. L. Bond to S. B. Simmons, concerning C. S. Brown groups teachers\u27 meeting
Letter from C. L. Bond to S. B. Simmons
No full textLetter from C. L. Bond to S. B. Simmons, concerning donation from NFA chapter
Letter from C. L. Bond to S. B. Simmons
No full textLetter from C. L. Bond to S. B. Simmons, sending in list of teacher\u27s fees
James Bond: international man of gastronomy
No full textThis article is concerned with the representation of food and drink in Ian Fleming’s James Bond novels. In particular, it examines how the author uses Bond’s culinary knowledge and habits of consumption as an important constituent of his hero’s character. Similarly, the food choices of other characters, notably villains, are shown to be linked, by Fleming, to core aspects of their identity − principally their ethnicity. Bond’s impulse to observe and classify, very much in evidence in the novels’ food sequences, is examined in terms of the texts’ construction of Bond as a skilled identifier of signs
Deconstructive diversification through C-C single bond cleavage
No full textDeconstructive functionalization through C-C bond cleavage can generate structures with modified carbon skeletons, which are challenging or even inaccessible to achieve otherwise. The highly desired transformations through C-C single bond cleavage are underexplored. Herein, we report a general procedure to produce halides from readily accessible alkyl alcohols through C-C single bond fragmentation. Catalyzed with iron chloride under visible light, this reaction performed efficiently to produce primary, secondary, and tertiary alkyl halides bearing various functional groups. The resulting halides are valuable synthons for versatile modifications. More importantly, because alcohol can be simply prepared from other functional groups including ester, aldehyde, ketone, alkene, etc., this method enabled a broadly useful C-C bond functionalization beyond using alcohol as the precursor through a two-step procedure. Through C-C single bond cleavage, the method establishes a general platform towards a highly valuable pool of unique synthons, which includes chiral fragments from abundant and inexpensive natural products
C–H Functionalization via Iodine-mediated Electrocatalysis and C–N Bond Formation
No full textThe access of heterocyclic compounds via direct amination of C-H bonds are of vital interest because of their role in pharmaceutical and natural products. The combination of molecular iodine and electricity activates benzylic C-H bond and facilitates the amination process via intramolecular C-N bond formation. Iodine works as a mediator for the formation of C-N bond via activation of a distance C-H bond through intermediate N-I bond under electrochemical conditions, so iodine can be called electrocatalyst. Under both batch & flow electrochemistry conditions, similar results were obtained in cyclization product with 77 & 78% yields respectively. However, in case of annulation reaction higher yield was obtained with 99% conversion under flow electrochemical conditions using our design of home-made flow microreactor. In both electrochemical transformations, cyclization as well as annulation reaction, no photocatalyst was used. Notably, flow reactions work under safe & environmentally friendly conditions, and continuous products are obtained
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