منابع مشابه
synthesis of 3-aryl-2h-benzo[b]-1,4-oxazines in [omim]bf4 and reduction of organic compounds in methylimidazolium formate
در این پروژه ترکیبات 3-آریل-2h-بنزو[b]-4،1-اکسازین ها از مواد اولیه تجاری مشتقات دو آمینو فنول و ?-هالو کتون های آروماتیک در مایع یونی 1-اکتیل-3-متیل ایمیدازولیوم تترا فلورو بورات([omim]bf4) سنتز شده است. این واکنش توسط باز پتاسیم کربنات محلول از طریق o-آلکیلاسیون و سپس یک واکنش آمیداسیون درون مولکولی خود بخود در مدت زمان کوتاه انجام می شود. ترکیبات 4،1-بنزوکسازین به این روش با بهره خوب تا آلی ...
15 صفحه اولSpring-loaded Compounds in Organic Synthesis
INTRODUCTION Ring strain is a property possessed by small molecules and is recognized by chemists as an exceptionally efficient and practical tool for attaining challenging transformations. Organic chemistry has witnessed tremendous progress towards this end with the development of a plethora of methods that can harvest the high energy of a strained system and direct it into productive pathways...
متن کاملProduction of volatile organic sulfur compounds (VOSCs) by basidiomycetous yeasts.
Thirty-seven basidiomycetous yeasts belonging to 30 species of seven genera were grown on media containing l-cysteine or l-methionine as sole nitrogen sources with the objective of evaluating volatile organic sulfur compound (VOSC) production. The headspace of yeast cultures was analyzed by the solid-phase microextraction (SPME) sampling method, and volatile compounds were quantified and identi...
متن کاملVolatile organic compounds: a bacterial contribution to plant sulfur nutrition.
In the decade since it was first reported that volatile organic compounds (VOCs) released by bacteria can promote plant growth, it has become clear that VOC-mediated interactions between bacteria and plants are widespread (reviewed in Bailly and Weisskopf, 2012). The effects of VOCs on plants have been found to vary, ranging from plant growth promotion to inhibition, even within the same combin...
متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1972
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed049p380.1