Nova via para a sntese de 1,2,4-oxadiazina-5-onas quirais by Najeh Tka (Portugue
$ 38.53
Description
Nova via para a sntese de 1,2,4-oxadiazina-5-onas quirais by Najeh Tka (Portugue. Title Nova via para a sntese de 1,2,4-oxadiazina-5-onas quirais. Author Najeh Tka. Health & Beauty. Nova via para a sntese de 1,2,4-oxadiazina-5-onas quirais by Najeh Tka Estimated delivery 3-12 business days Format Paperback Condition Brand New Description O trabalho de investigação realizado neste livro tem como objetivo desenvolver uma via de síntese simples e rápida para novos derivados quirais de 1,2,4-oxadiazina-5-onas conhecidas pelas suas interessantes actividades biológicas.A primeira parte deste livro descreve a síntese de uma série de α-bromoácidos opticamente activos por desaminação nitrosa enantioselectiva de aminoácidos naturais. Estes reagem depois com cloreto de tionilo seguido de metanol para dar os α-bromoésteres correspondentes.A condensação destes α-bromoésteres previamente preparados com 1-benzenossulfonilpirrolidina-2-carboxamidoxima na presença de dois equivalentes de hidreto de sódio permitiu obter as novas 1,2,4-oxadiazina-5-onas quirais desejadas com bons rendimentos químicos. Details ISBN 6207924398 ISBN-13 9786207924394 Title Nova via para a sntese de 1,2,4-oxadiazina-5-onas quirais Author Najeh Tka Format Paperback Year 2024 Pages 56 Publisher Edicoes Nosso Conhecimento GEItemID:161343419; About Us Grand Eagle Retail is the ideal place for all your shopping needs! With fast shipping, low prices, friendly service and over 1,000,000 in stock items - you're bound to find what you want, at a price you'll love! Shipping & Delivery Times Shipping is FREE to any address in USA. Please view eBay estimated delivery times at the top of the listing. Deliveries are made by either USPS or Courier. We are unable to deliver faster than stated. International deliveries will take 1-6 weeks. NOTE: We are unable to offer combined shipping for multiple items purchased. This is because our items are shipped from different locations. Returns If you wish to return an item, please consult our Returns Policy as below: Please contact Customer Services and request "Return Authorisation" before you send your item back to us. Unauthorised returns will not be accepted. Returns must be postmarked within 4 business days of authorisation and must be in resellable condition. Returns are shipped at the customer's risk. We cannot take responsibility for items which are lost or damaged in transit. For purchases where a shipping charge was paid, there will be no refund of the original shipping charge. Additional Questions If you have any questions please feel free to Contact Us. Categories Baby Books Electronics Fashion Games Health & Beauty Home, Garden & Pets Movies Music Sports & Outdoors Toys
